Identical Twins
Identical twins (monozygotic) occur when a single egg, fertilized by a single sperm, splits into two identical halves. Two separate babies with identical DNA are formed. Identical twins are always the same sex and blood type. They almost always share the same placenta but may also have two separate placentas. Depending on when the egg splits usually determines if identical twins will share the same placenta, and/or chorions and amnions. Twins are always identical when they share the same amnion and chorion.
Identical twins can be strikingly similar in their appearance, but this is not always true due to environmental factors and not genetics alone. Many identical twins are relatively easy to tell apart. Although, plenty of parents of twins will have to resort to twin DNA testing to know for sure. Also known as a twin zygosity test, this will determine if your twins are identical or fraternal with staggering accuracy. This DNA testing for twin zygosity is easily done by taking swabs from the mouths of each twin and then sending to a lab for analysis. There are many "at home" tests available for purchase on the web.
Another curiosity are identical twin fingerprints. Identical twin fingerprints will never be exactly the same. Even though identicals share the same DNA, you must keep in mind all of the environmental factors in the womb during development (blood pressure, growth rate, etc.). Fingerprints of identical twins will have similar patterns for sure, but there will nevertheless be differences.
An additional question on the topic of identical twins will typically be, "Why identicals?". Currently, the scientific community does not have a definitive answer to why one egg splits, but they do consider identical twinning to be non-hereditary. Meaning, having twins in your family will make no difference in the possibility of conceiving identical twins. Identical twins seem to occur randomly throughout the population without rhyme or reason.
Fun Fact: From a scientific point of view, the children of identical twins are the genetic equivalent of half-siblings rather than cousins. So, if identical twins marry another set of identical twins, then the resulting children would be the genetic equivalent of full siblings!
Fraternal Twins
Fraternal twins (dizygotic) occur when two separate eggs are fertilized by two separate sperm. Two separate babies with no more in common than siblings born at different times are formed. Fraternal twins can be the same sex and/or blood type. They always have separate placentas, but their placentas may fuse together during the course of pregnancy and appear as one at birth. Fraternal twins will never share the same amnion and chorion. Twins that are male and female and/or have different blood types can easily be determined as fraternal. Lastly, fraternal twins may be due to hereditary influences.
Fraternal twins can share many similarities in appearance just like any brother or sister of the same family. Though, I have known fraternal twins that were, in fact, difficult to tell apart. A great example of this are the famous Olsen twins (a.k.a. Mary Kate and Ashley), who claim to be fraternal twins. Generally though, fraternals are distinct enough to recognize who is who with ease. And it's a no brainer when they are of different sexes.
Now, on to the "why" factor. Fraternal twins are actually the most common type of twinning. While identical twins happen for no apparent reason, fraternal twins come about due to a number of factors. Because the ovary's malfunction of releasing two or more eggs at one time (hyper-ovulation) may be inherited, it is common to have a several sets of fraternal twins throughout many generations in one family. These fraternal twins are generally considered hereditary.
It's a common misconception that twins only come down through the mother's side. This only holds true when the father is the one with twins in the family or is a twin himself and he is also the one trying to conceive twins. To put it a bit more simply, the male only provides the sperm, whereas, the female is the one who either ovulates two eggs (fraternal twins) or one egg that splits (identical twins). That's why a woman can still inherit the hyper-ovulation gene from a grandmother, aunt, etc. on her father's side. But her father would not have had any hereditary chance of having twins himself when he had his child/children. In this situation, any possibility of hereditary fraternal twins would have to come from the mother's side.
An added reason for having fraternal twins is the age of the mother at conception. The chance of fraternal twins is more prevalent in women 35 years of age and older. And yet another growing cause of fraternal twins is the use of fertility treatments. If you are undergoing these treatments, your doctor will have already informed you of the possibility of a multiple birth.
Fun Fact: There are basically five common variations of twinning. The most common type of twinning is fraternal, male-female twins. This particular combination makes up approximately 40 percent of all twins born, followed by fraternal girls, then fraternal boys. After that, there's identical girls, then identical boys. The latter being the least common type of twinning of the five mentioned here.
It should also be noted that there are more twin pregnancies documented in women of African decent and less in women of Asian decent.
By Kellie Asaro: Mom-treprenuer, Author, Designer of Twin Clothing & Gifts
Kellie is the proud mother of identical twin boys and a daughter. She is the founder and author of [http://www.twin-pregnancy-and-beyond.com]http://www.twin-pregnancy-and-beyond.com, a wonderful resource for parents and families who have or are expecting twins. She also owns Trends In Twos - [http://www.trendsintwos.com]http://www.trendsintwos.com, a chic boutique specializing in clothing and gifts for twins and their families.
Article Source: http://EzineArticles.com/?expert=Kellie_Asaro http://EzineArticles.com/?Identical-Or-Fraternal-Twins?&id=1181871
By Kellie Asaro
P.S. : Are they identical twins or fraternal twins and what is the difference? This is certainly one of the most asked questions by parents of twins and the general public in regard to twins.
Showing posts with label Twins. Show all posts
Showing posts with label Twins. Show all posts
Conjoined Twins
Twins are a kind of multiple births, i.e., when a woman gives birth to more than one baby at the same time. Twins occur when more than one egg is fertilized or when the same egg is fertilized more than once by one or two sperm, leading to formation of more than one fetus.
Conjoined twins are identical twins who are joined together somewhere in the body. Conjoined twins are monozygotic twins, in the sense that they share the same zygote. Sometimes, they also share some vital internal organs. Formation of conjoined twins is believed to be the result of late twinning. When the twinning occurs more than twelve days after fertilization of the egg, it may lead to formation of conjoined twins because the embryo may not split completely. This may be due to genetic or environmental factors.
Conjoined twins are also known as Siamese twins, named after the famous conjoined twins, Eng and Chang Bunker from Siam. Conjoined twin births are very rare, amounting to around one birth in every 1,00,000 births. Mary and Eliza Chulkhurst, famously referred to as the biddenden maids, are one of the earliest known set of conjoined twins. The ratio of male and female sets of conjoined twins was found to be three to one, and they are found more in certain countries like India or Africa.
Conjoined twins rarely survive because of the complexity of the bodies. Most of them are stillborn or die within twenty-four hours after birth. Conjoined twins can be separated surgically if none of the vital organs are involved. There are different kinds of conjoined twins, depending on the part of the body where they are joined. These are cephalopagus, craniopagus, craniothoracopagus, dicephalus, iscopagus, omphalopagus, parapagus, pygopagus and thoracopagus. There are also some rare kinds of conjoined twins, such as parasitic twins (where one twin is not completely formed and depends on the other twin to sustain life), and fetus in fetu (where one twin’s fetus is present inside the body of the other twin).
Some people consider separation of conjoined twins as unethical if it involves death or disability of one of the twins. Conjoined twins, if they survive, can lead healthy lives. There are instances where conjoined twins have even married and become parents. The famous Siamese twins, Chang and Eng Bunker, fathered twenty-one children in thirty-one years. [http://www.WetPluto.com/Conjoined-Twins.html]Twins provides detailed information on Twins, Identical Twins, Twin Babies, Conjoined Twins and more. Twins is affiliated with [http://www.e-MaternityClothes.com]Maternity Clothing Store.
Article Source: http://EzineArticles.com/?expert=Peter_Emerson http://EzineArticles.com/?Conjoined-Twins&id=210062
By Peter Emerson
P.S. : Twins are a kind of multiple births, i.e., when a woman gives birth to more than one baby at the same time. Twins occur when more than one egg is fertilized or when the same egg is fertilized more than once by one or two sperm, leading to formation of more than one fetus.
Conjoined twins are identical twins who are joined together somewhere in the body. Conjoined twins are monozygotic twins, in the sense that they share the same zygote. Sometimes, they also share some vital internal organs. Formation of conjoined twins is believed to be the result of late twinning. When the twinning occurs more than twelve days after fertilization of the egg, it may lead to formation of conjoined twins because the embryo may not split completely. This may be due to genetic or environmental factors.
Conjoined twins are also known as Siamese twins, named after the famous conjoined twins, Eng and Chang Bunker from Siam. Conjoined twin births are very rare, amounting to around one birth in every 1,00,000 births. Mary and Eliza Chulkhurst, famously referred to as the biddenden maids, are one of the earliest known set of conjoined twins. The ratio of male and female sets of conjoined twins was found to be three to one, and they are found more in certain countries like India or Africa.
Conjoined twins rarely survive because of the complexity of the bodies. Most of them are stillborn or die within twenty-four hours after birth. Conjoined twins can be separated surgically if none of the vital organs are involved. There are different kinds of conjoined twins, depending on the part of the body where they are joined. These are cephalopagus, craniopagus, craniothoracopagus, dicephalus, iscopagus, omphalopagus, parapagus, pygopagus and thoracopagus. There are also some rare kinds of conjoined twins, such as parasitic twins (where one twin is not completely formed and depends on the other twin to sustain life), and fetus in fetu (where one twin’s fetus is present inside the body of the other twin).
Some people consider separation of conjoined twins as unethical if it involves death or disability of one of the twins. Conjoined twins, if they survive, can lead healthy lives. There are instances where conjoined twins have even married and become parents. The famous Siamese twins, Chang and Eng Bunker, fathered twenty-one children in thirty-one years. [http://www.WetPluto.com/Conjoined-Twins.html]Twins provides detailed information on Twins, Identical Twins, Twin Babies, Conjoined Twins and more. Twins is affiliated with [http://www.e-MaternityClothes.com]Maternity Clothing Store.
Article Source: http://EzineArticles.com/?expert=Peter_Emerson http://EzineArticles.com/?Conjoined-Twins&id=210062
By Peter Emerson
P.S. : Twins are a kind of multiple births, i.e., when a woman gives birth to more than one baby at the same time. Twins occur when more than one egg is fertilized or when the same egg is fertilized more than once by one or two sperm, leading to formation of more than one fetus.
Types of Baby Strollers
As you know there is a wide variety of baby strollers available to choose from. Your choice of strollers will be affected by how many children you plan to use it for, how you are going to use the stroller and where, and finally your budget. All things aside your baby’s comfort and safety will also influence your choice. Let’s take a look at some of the types of strollers available to you.
The standard stroller will fit one child and there are many different features on standard strollers such as play trays, parent trays, fabrics, and handlebars. On many strollers handlebars are now height adjustable which is great back saver.
Double strollers have two seats. There is a variety of seating arrangements for double strollers. The traditional double seat is one behind the other - tandem style. Tandem seating has the first child with a good view and he one in the rear seat sees the back of the other’s head. A variant of the tandem seating is stadium seating. Think of bleachers where each seat is raised slightly above the one in front of it allowing those in the rear to see what’s going on. There is side by side seating as well as face to face seating.
Jogging strollers are very popular because they enable you to bring your child along on a run. The jogging stroller has a triangular wheel base with two large wheels in the rear and one wheel in the front. They have many attractive features. An added safety feature is a wrist strap on the handle bar. This is worn so that when you stop, the stroller doesn’t roll away from you. As always whenever you stop your stroller the break should always be applied. The wrist strap is added protection. Jogging strollers are available for multiple seating as well.
Triple strollers are terrific for triplets or three children. Seating arrangements can be side by side but most have tandem seating or stadium seating. When the stroller is full of kids and you are pushing it will help you achieve your goals of fitness.
Convertible multiple strollers are available where they can be made into double seater's with additional seats and a transverse bar. You might want to check if this option is available for the particular stroller you are considering.
Umbrella strollers are very inexpensive. They are generally easier to fold and unfold. They are very lightweight and store easily in a car trunk. They are terrific for short trips to the Mall or short walks. They do not work well on all terrain. They do come in multiple seating as well. The only drawback I had with umbrella strollers is that if anything was hung on the handle it caused the carriage to tip backwards.
Light weight strollers are slightly heavier than the umbrella strollers and slightly less than the standard stroller. They typically fold in a single hand motion. They also resemble the standard type stroller. They also come in multiple seating.
Carriage Strollers are convertible strollers in that you can change them from a carriage (a bed on wheels) to a stroller. This is great for infants that are unable to sit up yet. The handle is reversible so you can turn it into a stroller which is great for children who are sitting up.
Bike strollers or trailers are installed by attaching it to the rear wheel. There are two seated models available. They can be converted from a trailer to a stroller with no tools. The restraint system is a five-point harness for each child.
About the Author
Martin Smith is a successful freelance writer providing advice for consumers on purchasing a variety of
Baby Crib Bedding
and more! His numerous articles provide a wonderfully researched resource of interesting and relevant information.
Article Source: http://www.articledashboard.com/Article/Types-of-Baby-Strollers/17221
by Martin Smith
The standard stroller will fit one child and there are many different features on standard strollers such as play trays, parent trays, fabrics, and handlebars. On many strollers handlebars are now height adjustable which is great back saver.
Double strollers have two seats. There is a variety of seating arrangements for double strollers. The traditional double seat is one behind the other - tandem style. Tandem seating has the first child with a good view and he one in the rear seat sees the back of the other’s head. A variant of the tandem seating is stadium seating. Think of bleachers where each seat is raised slightly above the one in front of it allowing those in the rear to see what’s going on. There is side by side seating as well as face to face seating.
Jogging strollers are very popular because they enable you to bring your child along on a run. The jogging stroller has a triangular wheel base with two large wheels in the rear and one wheel in the front. They have many attractive features. An added safety feature is a wrist strap on the handle bar. This is worn so that when you stop, the stroller doesn’t roll away from you. As always whenever you stop your stroller the break should always be applied. The wrist strap is added protection. Jogging strollers are available for multiple seating as well.
Triple strollers are terrific for triplets or three children. Seating arrangements can be side by side but most have tandem seating or stadium seating. When the stroller is full of kids and you are pushing it will help you achieve your goals of fitness.
Convertible multiple strollers are available where they can be made into double seater's with additional seats and a transverse bar. You might want to check if this option is available for the particular stroller you are considering.
Umbrella strollers are very inexpensive. They are generally easier to fold and unfold. They are very lightweight and store easily in a car trunk. They are terrific for short trips to the Mall or short walks. They do not work well on all terrain. They do come in multiple seating as well. The only drawback I had with umbrella strollers is that if anything was hung on the handle it caused the carriage to tip backwards.
Light weight strollers are slightly heavier than the umbrella strollers and slightly less than the standard stroller. They typically fold in a single hand motion. They also resemble the standard type stroller. They also come in multiple seating.
Carriage Strollers are convertible strollers in that you can change them from a carriage (a bed on wheels) to a stroller. This is great for infants that are unable to sit up yet. The handle is reversible so you can turn it into a stroller which is great for children who are sitting up.
Bike strollers or trailers are installed by attaching it to the rear wheel. There are two seated models available. They can be converted from a trailer to a stroller with no tools. The restraint system is a five-point harness for each child.
About the Author
Martin Smith is a successful freelance writer providing advice for consumers on purchasing a variety of
Baby Crib Bedding
and more! His numerous articles provide a wonderfully researched resource of interesting and relevant information.
Article Source: http://www.articledashboard.com/Article/Types-of-Baby-Strollers/17221
by Martin Smith
Celebrity Baby Trend: Twins
Age-related hormonal changes in women may cause more than one egg to be released at a time, which boosts the odds of conceiving fraternal twins. Also, older women are more likely to take fertility drugs or use other fertility technologies like in vitro fertilization to conceive. A family history of twins also makes multiples more likely. For more information on age-related hormones and other risks of pregnancy read Women’s Health, Fitness and Shape magazines.
Fraternal or non-identical twins are the most common. Fraternal twins biologically occur when two separate eggs are fertilized by two different sperm. This results in each twin having his or her own placenta and amniotic sac. Genetically fraternal twins are no more alike each other than any other siblings and can be two girls, two boys or a boy and a girl.
Identical twins biologically occur when one fertilized egg splits and develops into two fetuses. These fetuses may share a placenta but usually has separate amniotic sacs. Identical twins are genetically identical.
Recently a handful of celebrities have given birth to twins: Angelina Jolie, Jennifer Lopez, Julia Roberts and Marcia Cross. Actress-model Rebecca Romijn and her husband actor Jerry O’Connell just announced in People magazine they are expecting twins in the winter; Lisa Marie Presley also just announced she is expecting twins. Other celebrities who are parents are twins are Denzel Washington, Sean Combs and Cybill Shepherd. President and Mrs. Bush are the parents of twin daughters Barbara and Jenna Bush.
There are and have always been many famous twins in Hollywood. Often television and film production companies hire twin babies and children to share one role of a child character. The production companies do this so that child-labor laws, which require children to work shorter hours than adults, will not slow down production. Famously, twins Erin and Diane Murphy shared the role of “Tabitha” on the 1960s fantasy sitcom “Bewitched,” Lindsay and Sydney Greenbush shared the role of “Carrie” on the 1970s drama “Little House on the Prairie” and twins Mary-Kate and Ashley Olsen shared the role of “Michelle” on the 1980s sitcom “Full House.” Many twins including the Olsens and Tia and Tamara Mowry have starred as twins in family movies and television shows.
Sometimes only one twin is famous. Some examples of this situation are race car driver Mario Andretti (brother Aldo), actress Scarlett Johanssson (brother Hunter), model Gisele Bundchen (fraternal sister Patricia), actor Vin Diesel (Paul), singer Alanis Morissette (Wade) and actress Jill Hennessy (Jacqueline). For more famous twins read People Magazine, People En Espanol, Star magazine and In Touch Weekly.
Every year in Twinsburg, Ohio the city celebrates “Twin Days” in celebration of twins. For the upcoming 2008 event, which will be the 33rd annual Twin Days, event planners are hoping for 3,000 sets of twins.
In a comedic nod to twins, Arnold Swarzeneggar and Danny DeVito paired up as twins in the 1988 movie called Twins. For more movies and television shows about twins or featuring twins read Entertainment Weekly, People magazine and O The Oprah Magazine.
For more on celebrity twins visit, http://www.magazines.com/ncom/mag?id=4173667023075&subject=0015
Jessica Vandelay is a free-lance writer in New York City.
Article Source: http://www.articledashboard.com/Article/Celebrity-Baby-Trend:-Twins/487801
by Jessica Vandelay
Fraternal or non-identical twins are the most common. Fraternal twins biologically occur when two separate eggs are fertilized by two different sperm. This results in each twin having his or her own placenta and amniotic sac. Genetically fraternal twins are no more alike each other than any other siblings and can be two girls, two boys or a boy and a girl.
Identical twins biologically occur when one fertilized egg splits and develops into two fetuses. These fetuses may share a placenta but usually has separate amniotic sacs. Identical twins are genetically identical.
Recently a handful of celebrities have given birth to twins: Angelina Jolie, Jennifer Lopez, Julia Roberts and Marcia Cross. Actress-model Rebecca Romijn and her husband actor Jerry O’Connell just announced in People magazine they are expecting twins in the winter; Lisa Marie Presley also just announced she is expecting twins. Other celebrities who are parents are twins are Denzel Washington, Sean Combs and Cybill Shepherd. President and Mrs. Bush are the parents of twin daughters Barbara and Jenna Bush.
There are and have always been many famous twins in Hollywood. Often television and film production companies hire twin babies and children to share one role of a child character. The production companies do this so that child-labor laws, which require children to work shorter hours than adults, will not slow down production. Famously, twins Erin and Diane Murphy shared the role of “Tabitha” on the 1960s fantasy sitcom “Bewitched,” Lindsay and Sydney Greenbush shared the role of “Carrie” on the 1970s drama “Little House on the Prairie” and twins Mary-Kate and Ashley Olsen shared the role of “Michelle” on the 1980s sitcom “Full House.” Many twins including the Olsens and Tia and Tamara Mowry have starred as twins in family movies and television shows.
Sometimes only one twin is famous. Some examples of this situation are race car driver Mario Andretti (brother Aldo), actress Scarlett Johanssson (brother Hunter), model Gisele Bundchen (fraternal sister Patricia), actor Vin Diesel (Paul), singer Alanis Morissette (Wade) and actress Jill Hennessy (Jacqueline). For more famous twins read People Magazine, People En Espanol, Star magazine and In Touch Weekly.
Every year in Twinsburg, Ohio the city celebrates “Twin Days” in celebration of twins. For the upcoming 2008 event, which will be the 33rd annual Twin Days, event planners are hoping for 3,000 sets of twins.
In a comedic nod to twins, Arnold Swarzeneggar and Danny DeVito paired up as twins in the 1988 movie called Twins. For more movies and television shows about twins or featuring twins read Entertainment Weekly, People magazine and O The Oprah Magazine.
For more on celebrity twins visit, http://www.magazines.com/ncom/mag?id=4173667023075&subject=0015
Jessica Vandelay is a free-lance writer in New York City.
Article Source: http://www.articledashboard.com/Article/Celebrity-Baby-Trend:-Twins/487801
by Jessica Vandelay
What To Expect From A Twin Pregnancy: ABC’s Of Multiple Birth
Imagine wishing and trying for one baby and ending up with two! Statistics show that there has been an increase in twin pregnancy the past few years and this short guide should answer any questions you have to giving birth to multiples!
How do twins begin?
There are two kinds of twins: identical twins and fraternal twins. In the case of identical twins, the egg is fertilized and then splits into two cells. Each cell carries identical DNA and so both children will look exactly the same with only slight differences such as height or birthmarks. Fraternal twins are not identical. Instead of having one egg that splits into two, there are two eggs that are fertilized by two different sperm at the same time so they could be of two different sexes with different physical characteristics.
Early signs of twin pregnancy
An early sign of twin pregnancy is excessive morning sickness and extreme fatigue. Morning sickness is common with all pregnant mothers but those who are giving birth to multiples tend to experience more morning sickness than usual. Exhaustion is another early sign of twin pregnancy. Again, it is not uncommon for pregnant women to be more tired than usual but those who are having twins tend to undergo enhanced exhaustion. Twins are hereditary and so if you are feeling excessively tired, are often nauseous and twins run in your family, you very well could be giving birth to multiples!
Twin pregnancy facts
With twins, you’ll have to prepare for double the trouble! This means you will probably be gaining more weight than with a single pregnancy. Due to this extra weight, a pregnancy with twins can often be more uncomfortable – severe exhaustion, stronger backaches and headaches, etc. So get plenty of sleep and rest. Try a pregnancy massage, a great stress reliever to those giving birth to multiples. Also be prepared for a possible c-section, as with multiples this is the more common way of giving birth. Because a twin pregnancy is considered a high risk pregnancy, you will probably need to consult your obstetrician more often than if you were having a regular pregnancy. Do not be fazed as this is quite common with twins.
Having a twin pregnancy is most certainly a mixed blessing. Whilst having two children is an amazing experience, the pregnancy itself can be tough so make sure to take care of yourself.
Article written by Sarah Mitchell from NamesToBe.com (http://www.namestobe.com). Here is another article about twins readers may enjoy: http://www.namestobe.com/twins-article.html. View all articles at: http://www.namestobe.com/baby-articles.html. Article free for reprint as long as this author bio is present and all hyperlinks remain active.
Article Source: http://www.articledashboard.com/Article/What-To-Expect-From-A-Twin-Pregnancy:-ABC’s-Of-Multiple-Birth/8080
by Sarah Mitchell
How do twins begin?
There are two kinds of twins: identical twins and fraternal twins. In the case of identical twins, the egg is fertilized and then splits into two cells. Each cell carries identical DNA and so both children will look exactly the same with only slight differences such as height or birthmarks. Fraternal twins are not identical. Instead of having one egg that splits into two, there are two eggs that are fertilized by two different sperm at the same time so they could be of two different sexes with different physical characteristics.
Early signs of twin pregnancy
An early sign of twin pregnancy is excessive morning sickness and extreme fatigue. Morning sickness is common with all pregnant mothers but those who are giving birth to multiples tend to experience more morning sickness than usual. Exhaustion is another early sign of twin pregnancy. Again, it is not uncommon for pregnant women to be more tired than usual but those who are having twins tend to undergo enhanced exhaustion. Twins are hereditary and so if you are feeling excessively tired, are often nauseous and twins run in your family, you very well could be giving birth to multiples!
Twin pregnancy facts
With twins, you’ll have to prepare for double the trouble! This means you will probably be gaining more weight than with a single pregnancy. Due to this extra weight, a pregnancy with twins can often be more uncomfortable – severe exhaustion, stronger backaches and headaches, etc. So get plenty of sleep and rest. Try a pregnancy massage, a great stress reliever to those giving birth to multiples. Also be prepared for a possible c-section, as with multiples this is the more common way of giving birth. Because a twin pregnancy is considered a high risk pregnancy, you will probably need to consult your obstetrician more often than if you were having a regular pregnancy. Do not be fazed as this is quite common with twins.
Having a twin pregnancy is most certainly a mixed blessing. Whilst having two children is an amazing experience, the pregnancy itself can be tough so make sure to take care of yourself.
Article written by Sarah Mitchell from NamesToBe.com (http://www.namestobe.com). Here is another article about twins readers may enjoy: http://www.namestobe.com/twins-article.html. View all articles at: http://www.namestobe.com/baby-articles.html. Article free for reprint as long as this author bio is present and all hyperlinks remain active.
Article Source: http://www.articledashboard.com/Article/What-To-Expect-From-A-Twin-Pregnancy:-ABC’s-Of-Multiple-Birth/8080
by Sarah Mitchell
Identical Twins
Twins are two people who have shared the same womb at the same time. They may also have come from the same egg. Twin births are becoming more and more common due to several factors such as increasing use of fertility treatments, child births at an older age, and even genetic factors. Women who are slightly above-average in build are also likely to have multiple births or twins. Certain ethnic groups are also found to have a greater twin population. One in every 250 births in the world could be an identical twin birth.
Identical twins are also known as monozygotic twins. They are from a single egg that forms a single zygote that splits into two embryos. Two fetuses emerge from the two embryos in the same womb. The exact reason for this splitting hasn’t been identified yet. Sometimes, identical twins also share the same amniotic fluid, making them monoamniotic. Otherwise, they are diamniotic. Twins sharing the same placenta are monochorionic. Those who don’t are dichorionic. This happens only in the case of identical twins. All monoamniotic twins are also monochorionic. This depends on the stage at which the zygote divides. Twinning at the earliest stages would result in diamniotic and dichorionic twins. Twinning that occurs four to eight days after fertilization and eight to twelve days after fertilization results in monochorionic-diamniotic and monochorionic-monoamniotic, respectively. Twinning twelve days post-fertilization may result in conjoined twins. Conjoined twins are attached to each other at some place. They may be more dependent on each other physically.
Since identical twins share the same sac, amniotic fluid, and placenta, there could be some complications in pregnancy. These could be a result of the entanglement of the umbilical cords or twin-to-twin transfusion syndrome because of the shared placenta. This may cause one or both the babies to be underdeveloped.
Identical twins are generally of the same sex. They have identical DNA and shared genes. They may be very similar to each other, almost like mirror images. Some twins can be told apart only by their fingerprints, teeth, handwriting, or any other intricate observations. However, they have individually different personalities and character traits. Twins are generally emotionally attached to each other and are also believed to live longer because of this attachment. Some people even believe that identical twins have their own language through which only the two of them can communicate. Some identical twins are also mirror twins—they are exact mirror images of each other. About one-fourth of all identical twins are mirror twins. Sometimes, one mirror twin may have a condition where some or all the internal body organs will be on the opposite side of the body. However, these are considered to be birth defects and are extremely rare.
Identical Twins provides detailed information on Twins, Identical Twins, Twin Babies, Conjoined Twins and more. Identical Twins is affiliated with Maternity Clothing Store.
Article Source: http://www.articledashboard.com/Article/Identical-Twins/46444
by Peter Emerson
Identical twins are also known as monozygotic twins. They are from a single egg that forms a single zygote that splits into two embryos. Two fetuses emerge from the two embryos in the same womb. The exact reason for this splitting hasn’t been identified yet. Sometimes, identical twins also share the same amniotic fluid, making them monoamniotic. Otherwise, they are diamniotic. Twins sharing the same placenta are monochorionic. Those who don’t are dichorionic. This happens only in the case of identical twins. All monoamniotic twins are also monochorionic. This depends on the stage at which the zygote divides. Twinning at the earliest stages would result in diamniotic and dichorionic twins. Twinning that occurs four to eight days after fertilization and eight to twelve days after fertilization results in monochorionic-diamniotic and monochorionic-monoamniotic, respectively. Twinning twelve days post-fertilization may result in conjoined twins. Conjoined twins are attached to each other at some place. They may be more dependent on each other physically.
Since identical twins share the same sac, amniotic fluid, and placenta, there could be some complications in pregnancy. These could be a result of the entanglement of the umbilical cords or twin-to-twin transfusion syndrome because of the shared placenta. This may cause one or both the babies to be underdeveloped.
Identical twins are generally of the same sex. They have identical DNA and shared genes. They may be very similar to each other, almost like mirror images. Some twins can be told apart only by their fingerprints, teeth, handwriting, or any other intricate observations. However, they have individually different personalities and character traits. Twins are generally emotionally attached to each other and are also believed to live longer because of this attachment. Some people even believe that identical twins have their own language through which only the two of them can communicate. Some identical twins are also mirror twins—they are exact mirror images of each other. About one-fourth of all identical twins are mirror twins. Sometimes, one mirror twin may have a condition where some or all the internal body organs will be on the opposite side of the body. However, these are considered to be birth defects and are extremely rare.
Identical Twins provides detailed information on Twins, Identical Twins, Twin Babies, Conjoined Twins and more. Identical Twins is affiliated with Maternity Clothing Store.
Article Source: http://www.articledashboard.com/Article/Identical-Twins/46444
by Peter Emerson
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