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Why Can fraternal twins be different gender but identical twins are always the same gender?
fraternal twins have two different chromosomes
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Why can fraternal twins different genders but identical are always the same gender?
fraternal twins have two different chromosomes
Can conjoined twins be different gender?
Nature has various safety valves. That is one of them. Conjoined Twins are identical twins with a natural connective bond, therefore they always take the same sex. Fraternal twins, like the fictional Bobbseys, can be Boy and Girl.
Can identical twins be of different sexes?
They can be. While identical twins always have to be the same gender, fraternal twins usually are not. However this is not always the case. Identical twins occur because they inhabit the same egg. Fraternal twins because two eggs were fertilized at the same time. So fraternal twins could be the same gender, but usually they are of the opposite gender.
Why can fraternal twins be different genders but identical twins are are the same gender?
Identical Twins are the result of a single fertilized egg spliting in two producing two genetically identical children. Fraternal twins are the result of the mother producing two eggs each fertilized by a different sperm from the father. This can result in opposite sex twins.
Twins formed by the fertilization of two ova by two sperm are?
They would be fraternal twins. Identical twins are created when one sperm fertilized one egg, and hat egg then splits in two. Identical twins are always the same gender, while fraternal twins can be either gender, or a mix of the two.
Can triplets be identical if they are different gender's?
No, triplets cannot be identical if they are of different genders. Identical triplets arise from a single fertilized egg that splits into three, resulting in genetically identical siblings with the same sex. If the triplets are of different genders, they must have originated from multiple eggs being fertilized, which means they are fraternal triplets instead of identical ones.
Why do you think identical twins were more alike than fraternal twins?
Fraternal twins share most of their genetic material, by virtue of having the same parents. Identical twins, however, by definition share 100% of their DNA. This means, for example, that identical twins cannot ever be one of each gender, as fraternal twins often are.
Do identical twins with opposite genders exist?
Yes, it's possible for a mutation in the chromosome to produce otherwise-identical twins with opposite genders. But generally no, identical twins have the same gender. (but fraternal twins have different genders just as often as any siblings)
Why do fraternal twins don't have to be of the same sex?
Unlike identical twins, fraternal twins come from two separate eggs each getting fertilized by a separate sperm. Now these sperms can both carry an X chromosome or a Y chromosome giving rise to fraternal twins of the same gender. But at times one could carry the X chromosome and the other could carry the Y chromosome resulting in twins of opposite gender.
Why are identical twins always the same gender?
fraternal twins have two different chromosomes
Why are most conjoined twins female?
They can be either but are always Gender-Bound, Two boys or Two girls, a Boy and a Girl, born Siamese is impossible, as they are identical twins, not fraternal and normally ( Take their Gender) to a man- or woman as it were.
How can families have 3 girls in a row?
One possibility is identical triplets. Identical multiple births are always- Gender Bound ( same gender- like the Dionne 5 from l934 Canada). On the other hand you can have a boy and a girl fraternal. the other possibility is adopting children. Are you producing a television drama? That was a common device such as My Three Sons, etc.
