Interestingly, even the website for the twin study at U of WA specifically states that idential twins share ALL of their genetic material thus, in the rare circumstance of monozygotic boy/girl twins, they would not be referred to as "idential" at all since they don't share all of their genetic material There are NO IDENTIAL boy/girl twins yes they can be identical, mad I know BUT there is a lady Ange on the AMM She has b/g twins was told they were ID all through pg and then they were born one girl and one boy and she was very surprised; 30% of di/di twins are identical Whether they have one placenta or two and/or one amniotic sack or two has to do with the timing of the egg splitting I have two sisters with twins Both Sets are Di/Di Both got genetic testing after they were born Both sets are identical!!
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Can a boy and girl twin be identical
Can a boy and girl twin be identical- For identical twins to have different blood types, something needs to happen to one twin's DNA Small changes in DNA can and do happen so identical twins do have a few differences What makes them having different blood types so rare is that the changes have to be in just the right place out of over six billion different possible placesAn ultrasound scan of your placenta could offer some clues, but the most accurate way to tell if your twins are identical or fraternal (nonidentical) is with a DNA test performed after your babies are born
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DOCTORS say they have discovered the world's second known case of semiidentical twins born from one egg and two sperm The now fouryearold boy and girl, from Brisbane, Australia, are identicalIs it possible to have identical twins of different genders? If you've got boy/boy or girl/girl twins, you may have identical twins The trick is determining whether boyboy twins or girlgirl twins are truly identical or if they are fraternal
Identical (monozygotic) twins are always of the same sex because they form from a single zygote (fertilized egg) that contains either male (XY) or female (XX) sex chromosomes A set of boy/girl twins can only be fraternal (dizygotic) Boy/girl twins cannot be identical (monozygotic) Click to Doctors in Australia say they have identified a second case of twins apparently created from one egg and two sperm, a boygirl combination in whom the mother's DNA is identical in both babies but Moreover, if identical twins end up being different genders, the male with XY chromosomes may turn out normal, but the female with XO chromosomes might have Turner Syndrome Technically speaking, yes there are semiidentical or maternal twins can be a boy and a girl However, it is not without risk or genetic anomalies to the fetus
They checked the placenta and yip id They called polar twins I believe and are extraordinarily rare indeedBy Anonymous Actually, there can be identical boy/girl twins if the sex gene of the embryo has an extra x chromosome (the fertilized egg would be an xxy) then when the egg splits one can have xx (girl) genes and one can have xy (boy) genes Rare but possible Only 4 ever recorded cases"Are all samesex twins (boy/boy or girl/girl) identical (monozygotic)?" No, definitely not This is tricky—onozygotic/identical twins are nearly always the same sex either boy/boy or girl/girl Until very recently, in fact, experts thought monozygotic/identical twins had to be samesex
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IT IS POSSIBLE to have identical twins of different genders, it may be extremely rare, but is definitely a possible phenomenon To know more about this myth, and all the other kinds of twins sets, do read my guest blog on Babychakra Types of Twins you Never Knew About! Fraternal twins will not be identical and can be either the same sex or a boy and a girl Identical twins This is when only one egg is fertilized, and the zygote splits into two early in pregnancy, forming two embryos Identical twins have the same chromosomes, and will look the same and be the same sex Implantation in the womb The one who looks like a boy has an XXXY mix of 4753;
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The two girls started out like all identical twins, developing from the same fertilized egg and the exact same set of DNA But when they were born last year they didn't look like identical twins One girl has peach skin and blue eyesBoy/girl monozygotic (identical) twinsBabychakra is the number 1 parenting app in India and is a new mom's best
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Young Brisbane twins, a boy and a girl, have been identified as only the second set of semiidentical, or sesquizygotic, twins in the world Young Queensland twins, a boy and a girl, have been identified as only the second set of semiidentical twins in the world – and the first to be identified by doctors during pregnancy The twins, who are identical on their mother's side but share only part of their father's DNA, are the first case of semiidentical, or sesquizygotic, twinsThere's no such thing as identical boy/girl twins Identical means that they have the same DNA Gender is in the DNA A boy can't have the same DNA as a girl because the boy's DNA would show that he was male and the girl's would show that she is female
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In 999% of cases boy/girl twins are nonidentical However, in some extremely rare cases resulting from a genetic mutation, identical twins from an egg and sperm which began as male (XY) can develop into a male / female pair This happens when the fertilised egg 'loses' one of the copies of the Y chromosome when it is dividing into two The boy and the girl, now four, from Brisbane, in Australia, are identical on their mother's side But they share only a proportion of their father's DNA The twins can be two girls, two boys, or a boy and a girl Identical twins occur when a single fertilized egg splits and develops into two fetuses Identical twins might share a placenta and an amniotic sac or the twins might share a placenta and each have separate amniotic sacs Genetically, the two babies are identical
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Boy/girl monozygotic (identical) twins In very rare cases, identical twins can be different sexes These twins begin as identical male twins Like all males, they both have XY sex chromosomes, instead of XX like all females doNo Identical twins originate from a single fertilized egg splitting during the very early stages of development so that it produces two embryos They are effectively simultaneous natural clones of each other, differing from each other only due toThe chances of having identical twins is relatively rare — around 3 or 4 in every 1,000 births And while it may be obvious, identical twins are always the same sex, either both boys or both girls, at birth Is it possible to have identical twins of different genders?
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#BodyBizarre #BornDifferent #ConjoinedTwinsCan conjoined twins be a boy and a girl?So far, all the conjoined twins featured in our channel are whether two bo A boy and girl twins cannot be identical Monozygotic or identical twins are usually of the same sex as they are formed from a single zygote (fertilised egg) which contains either male (XY) or female (XX) sex chromosomes Just like siblings, fraternal twins share 50% of DNA from father and mother Fraternal twins represent twothirds of all twins Twins of different genders are universally accepted as a sound basis for a clinical determination that boy and girl twins are not identical However, in extremely rare cases, boy and girl twins can stem from the same fertilized egg Twins, who stem from the same fertilized egg, are called monozygotic twins
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How common are identical twins? Two boys and identical twin girls He is the author of the popular books Dad's Guide to Twins and Dad's Guide to Raising Twins This site is dedicated to helping you learn from his experiences (and thousands of other twin parents) so you can be the best twin dad you can beSo my husband and I assumed identical twin boys given we had a single embryo transfer At the week scan, they asked us if we wanted to know the sex of our babies and we said we already knew one was a boy and assumed the other was as well Anyway, imagine our surprise when they said one was a girl and one was a boy!!!!!
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Babies from twin pregnancies are more likely to suffer from birthrelated complications than those from singleton pregnancies Fraternal and identical twins can be Identical, or monozygotic, twins may or may not share the same amniotic sac, depending on how early the single fertilized egg divides into 2 If twins are a boy and a girl, clearly they are fraternal twins, as they do not have the same DNA A boy has XY chromosomes and a girl has XX chromosomesThis misinformation around di/di = fraternal is so common and so not true!!
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These are the possible sex combinations A set of boy/girl twins Can only be fraternal (dizygotic), as boy/girl twins cannot be identical (monozygotic) Two boy twins Can be either identical or fraternal (monozygotic or dizygotic) Two girl twins Can be either identical or fraternal (monozygotic or Science now tells us that it IS possible to have boy/girl identical twins, if the girl has Turners syndrome There are 3 documented cases Discovery Channel did a show on twins that featured a set This happens when the egg splits to create identical boy twins, but one of the resulting eggs loses a Y sex chromosome (this can happen with single Girlgirl twins and boyboy twins may be identical or fraternal How can you tell what type of twins you are having?
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Identical twins share the exact same genetic material, egg/sperm and all (while fraternal twins are conceived from a different egg and sperm) So in this case, the four "sets" of DNA are theThe girl has a mix of 9010 In the 07 case, one of the twins actually had ambiguous genitalia, In the case of identical twins, the fertilized egg splits in two In the case of identical triplets, the egg may split just once into three or it may split twice (where the egg splits first in two and then one of the two splits again), resulting in three embryos with the same general DNA characteristics Monozygotic triplets are always the same sex, either all boys or all girls
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Fraternal twins are considered "dizygotic," and that's when two separate eggs are fertilized by a two different sperm "Each twin has his or her own placenta and amniotic sac The twins can be two Sometimes identical twins can be assigned the sex of a boy and a girl at birth These twins start off as identical males with XY sex chromosomes But shortly after the egg divides, a genetic Moreover, if identical twins end up being different genders, the male with XY chromosomes may turn out normal, but the female with XO chromosomes might have Turner Syndrome Technically speaking, yes there are semiidentical or maternal twins can be a boy and a girl However, it is not without risk or genetic anomalies to the fetus
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Rarely, a boy and girl may be identical twins This condition, called Turner Syndrome, afflicts very few pairs of twins The gender difference occurs when an egg and a sperm pair that begins as two males, loses a copy of its dominant Y chromosome when it splits A twin boy and girl may be identical, according to a study found on NCBI, although this situation is very rare It seems like it should not be possible, but a recent case showed that sometimes a boy and a girl are born as semiidentical twins An ultrasound of identical twins CreditThe science behind identical twins demands that they be the same sex So the quick answer to Mariana's question is YES They can both be boys or they can both be girls, but a set of identical twins cannot be one of each One fertilized egg splits into two embryos, then the two identical twins develop in the womb
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It is safe to assume that if twins born are of different sexes, 9999% of the time they are going to be dizygotic or fraternal twins and not identical twins Khushboo Kirale Hi, I am Khushboo KiraleThakker, a marketing specialist turned homemaker and mom of four (1 elder daughter and triplets—all boys) In Vitro Fertilization Gives Two Sets of Identical Twins to Couple Two embryos split to create two sets of identical twin quadruplets Fertility treatment adds two boys and two girlsCan male/female twins ever be identical?
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Fraternal twins can be boy/boy, boy/girl, or girl/girl Identical twins are the result of one fertilized egg splitting The split usually happens around days 4 or 5, after the placenta and sac have started forming Which means the two babies end up in the same sac, sharing the same placenta Identical twins are always boy/boy or girl/girl
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