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Fraternal 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. Fraternal twins have their own unique DNA and while they may look similar, they are not identical in appearance.
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What is fraternal twins in afrikaans?
Tweeling
The DNA fingerprints of fraternal twins will be the same?
No, faternal twins are created from two different egg cells. They have some similar genetic information however. Indentical twins on the other hand, would have identical fingerprints since they are created within one egg cell.
Are twins that can only be two girls or two boys identical?
No. In order for them to be identical they needed to start off as the same cell and divide so at first their DNA is identical meaning they have the same sex. During development slight changes may occur but the sex always stays the same. Boy-girl twins are always two different cells meaning that they are not identical. The term for boy-girl twins is furturnal. You can however have boy-boy twins and girl-girl twins that are not identical and they are also called furternal. So basically, identical twins start off as one cell that divides and furternal are two individual cells. There is polar body twinning, that's when the egg splits before fertilization, and that can cause a male and a female. This is called semi identical twins or half twins. They share 75% of their genetic markers.
Can fraternal twins be black and white?
Yes, but not monozygotic twins. There are cases where a woman was impregnated by two (or more?) men very close in time to each other, and two ova were fertilized by different men. In that case black and white twins are quite possible.
How cloning is used in cattle breeding?
Cloning is used in cattle breeding by taking an embryo of a donor cow (being a female of top breeding quality) and making it into a copy of that cow with the same desired qualities. Cloning is also naturally done by producing fraternal twins in cattle.
Why Can fraternal twins be different gender but identical twins are always the same gender?
fraternal twins have two different chromosomes
Are fraternal twins never the same sex?
Fraternal twins can be the same sex or opposite sexes. It doesn't matter.
Why can fraternal twins different genders but identical are always the same gender?
fraternal twins have two different chromosomes
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.
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.
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.
Are fraternal twins the same as paternal twins?
no
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.
What are fraternal twins?
Fraternal twins are two siblings that have the same birth day, but do not look identical.
Do fraternal twins write with the same hands?
Fraternal twins do not necessarily write with the same hand. Hand preference is influenced by genetics and environmental factors, so it is possible for fraternal twins to have different dominant hands.
What is the difference fraternal and identical twins?
Identical twins come from the same fertilized egg; fraternal twins come from 2 fertilized eggs.
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.
