Lisathompson09 lisathompson09 Mathematics Middle School answered Semiidentical twins, an apparent rarity, share threequarters of their DNA, vs 100% for fullyidentical twins, or 50% for fraternal twins While identical twins always have the same birthgender, semiidentical twins can be a boy/girl pair 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 male
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Can identical twins be a boy and girl
Can identical twins be a boy and girl- Fraternal 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 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 The terms identical and
Can Identical Twins Be Male And Female About Twins
Because 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 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 Meet 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
Answer (1 of 8) There are two types of twins mainly Fraternal which is from two eggs and two sperm, they can be the same gender or boy/girl The other type of twins is identical which is when one egg, one sperm splits into two when fertilized 999% ofIn 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 The normal genetic makeup of a girl is XXThey 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 form
If the twin dies in the second or third trimester, there are increased risks to the surviving fetus, including aHowever, 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? This can happen because the ovaries release two eggs and not just one Basically, fraternal twins are as alike as siblings would be — in other words, they are not identical Fraternal twins might be two boys, two girls, or a boy and a girl Each baby develops in
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In respect to this, are boy or girl identical twins more common? The father's sperm determines gender Usually, the chances of fraternal twins being boys, girls, or a combination of both are the same as for any normal babies Identical twins (Monozygotic), on the other hand, are always of the same gender Fraternal twins can be two boys, two girls or one girl and one boySemiidentical twins can be boy/boy, boy/girl or girl/girl, the Based on the above concept of gender determination, we can now understand the different gender variations in identical and fraternal twins For 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
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/2447124-boy-girl-identical-twins-5b06eddb3de4230039f4d40c.png "Can Identical Twins Be Different Sexes")
Can Identical Twins Be Different Sexes
I contend they're 25 percent for two boys, 25 percent for two girls and 50 percent for one boy and one girl Can you have twins without family history? Can a boy and a girl twin be identical?By 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
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Can Identical Twins Be Male And Female About Twins
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 2 Fraternal twins can be either two girls, two boys, or one of each These are the possible sex combinations 1 A set of boy/girl twins Can only be fraternal 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 My 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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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), 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)But it is extremely rare and I am not sure how it happens ) Wiki User
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