選択した画像 boy and girl twins can be identical 341839-When can a boy and girl be identical twins

If the twin dies in the second or third trimester, there are increased risks to the surviving fetus, including aBy 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 casesBoy/girl twins are always fraternal or (dizygotic);

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When can a boy and girl be identical twins

When can a boy and girl be identical twins-Answer (1 of 16) Identical (monozygotic) twins are nearly identical in terms of genetics, so are almost always the same sex The exceptions come from very unusual events such as aneuploidy (uneven chromosomal splitting leading to an abnormal chromosome number in the cell) or X chromosome deactivHeteropaternal Superfecundation Twins with Different Fathers Can a boy and a girl twin be identical twins?

Can A Boy And A Girl Be Identical Twins

Many parents of identical twins take nail polish to the hospital with them and paint one twin's big toe This way it's not too obvious but you can rest assure that it will last for a while!Boy/girl monozygotic (identical) twins In very rare cases, identical twins can be different sexes These twins begin as identical male twinsCheck out this link

Boy/girl twins are always fraternal or (dizygotic);A twin boy and girl may be identical, according to a study found on NCBI, although this situation is very rare Usually identical twins share the same gender they are either a pair or boys or girls In rare instances, however, identical twins form from an egg and sperm that begin as males (sharing XY chromosomes) then change to become a maleMeet The Boy And Girl Who Are Identical Twins Several years ago, an expecting mother was carrying identical twins a rare and joyous occasion, but known to happen from time to time At her 14 week scan, something more remarkable was discovered one of the identical twins was a boy, and the other a girl

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 pairFemale and male identical twins Sometimes identical twins can be assigned the sex of male and female at birth These twins start off as identical males with XY sex chromosomesSo yes your babes could be identical if they are di/di

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The official website of Twins Research Australia 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 pairAnd 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?There actually is a slight tendency for twins to be conceived in the summer compared to single babies When twins are born, pairs of boygirl twins are slightly more likely to be born if conception occurred in the summer months, but the same can't be said for samesex twins

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SuperChuck solokumba When I tell people i have a boy and a girl twin, some actually ask if they are identical I was at the store once with my twins and their older brother They all looked very close at the time and I had this exchange with a woman in lineTwo 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 beI am an identical twin (and 31 years old), and just found this out about a month ago I was watching a show on the Discovery Health channel that talked about multiples, and how doctors are using the term monozygotic rather than identical now, because an egg can split and become one boy and one girl!

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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 identicalIdentical (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), as boy/girl twins cannot be identical (monozygotic)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)

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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 twinsYes, boy/girl twins can be identical although it is not a pleasant situation As most of us know from all the research we did when we found out we were having twins, the difference between identical and fraternal twins is that identical twins arise from the splitting of one eggFraternal twins can be boy/girl, two girls, or two boys So no, your boy/girl twins are not identical There is an extremely rare case that can happen where the zygote splits to form identical twins but one of the pair doesn't get both sex chromosomes

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Another site said that 1/3 of all twins are identical Others give different numbers If I take that first pair of numbers, we get the probability of two boys, or of two girls, is , and the probability of one of each is So each probability is about 1/3 That came from a quick search for frequencies of twins, just looking forFraternal Twins Fraternal twins may be of the same or different sexesIn 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

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They can only form from two separate eggs that are fertilized by two separate sperm The terms identical and fraternal don't describe what the twins look like, but actually how they formA set of boy/girl twins Can only be fraternal (dizygotic), as boy/girl twins cannot be identical (monozygotic) What happens if Momo twin dies?In respect to this, are boy or girl identical twins more common?

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Same Same But Different When Identical Twins Are Non Identical

5 years ago So my understanding is that, technically speaking, b/g twins can be identicalbut it's extremely rare It's a chromosomal abnormality when one of the male twins loses the Y chromosome when the egg splits The egg develops as a female but the girl would end up with Turner's Syndrome level 2Answer (1 of 43) Usually not Because if so, they would have different sex chromosomes (one will have XX and the other XY) Identical twins develop from a single zygote that later splits in two They have the same genes and usually look very similar They areTwins can be identical boys, identical girls, nonidentical boys, nonidentical girls or one boy and one girl what are the possible combinations with quadruplats 1 See answer shakemaaaliyah1438 is waiting for your help Add your answer and earn points

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Genetics And Dna Of Identical Twins

All the time I used to say, nope, 1 boy/1 girl Then i would get the head tilt and say, um, they can't be identical, one has a penis lol they usually get it at that point but this one lady I had to explain identical means identical in everywayI'm having fraternal twins (di/di but boy/girl so that's a definite!) but I've had medical professionals ask me if I know if they are identical or not they can't possibly be with being a boy and a girl but I just think that so many people really know nothing about 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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Even though your babies are identical they might not weigh the same atFor identical twins As identical twins grow from a single fertilized egg that later split to form two zygotes with the same genetic material, the gender of both the babies will be the same That means they can either be both females or both males Let us look at each scenario in detail Scenario 1, both girls The egg that always contains theBecause fraternal twins originate from separate conceptions, they can both be boys, both girls, or one of each (just like a singleton baby) Chromosomes from the father's sperm determine gender XX for a girl and XY for a boy 

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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 fetusSome identical twins may be born with individual sets of membranes, which may lead to the mistaken assumption that the babies are fraternal One way to tell the difference is to have the twins DNAtested Identical twins share the same genetic information, while fraternal twins share around half The test can be done with a sample of cheekFraternal twins can be either boys or girls, or a combination of one girl, one boy They are different from identical twins, who share the same DNA and must be the same gender

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The terms identical and fraternal don't describe what the twins look like, but actually how they form 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 Fraternal twins can be either two girls, two boys, or one of eachThey can only form from two separate eggs that are fertilized by two separate sperm The terms identical and fraternal don't describe what the twins look like, but actually how they formFraternal 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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Identical question by Anonymous I have a boy and a girl and I get Are they Identical?Can identical twins be male and female?However, males are also more susceptible than females to die in utero, and since the death rate in utero is higher for twins, it leads to female twins being more common than male twins Additionally, are twins the same gender?

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And so I should point out that it is actually possible for a boy and a girl to be identical twins There is a genetic mutation that can occur in male identical twins before they're born which results in one of the twins losing a male chromosome and developing as a female However, even as an identical twin (male), I agree that it is stupid toI have modi identical girls We knew they were modi (and therefore identical) before we knew the sex When I was pregnant, my SIL excitedly told me that she hoped I would have a boy and a girl I said "Oh no, they're identical so it's either two boys or two girls" She replied "No, identical just means they look alike They can be boyIs it possible for a boy girl pair of twins to be genetically identical?

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In 999% of cases boy/girl twins are nonidenticalHowever, 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 pairMy b/g twins are 65 months old (I delivered at 371) I think they look a lot alike I get told mine look alike all the time and they are so different My girl is fair skinned, long torsoed, barely any hair, blue eyes My boy is olive skinned, short torsoed, a head of hair, and dark eyes

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