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fraternal twins can have separate fathers.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoYes, and the same mother, also.
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Do conjoined twins have the same sex?
Yes. Conjoined twins are always identical (monozygotic) twins, and identical twins are always the same sex.There is a theoretical case where identical twins could be opposite genders, when the babies are female but in one of the females, a branch of one X chromosome breaks away; however, I don't believe this has ever been observed.
Which gender is homozygous?
Homozygous means "the same egg." That refers to identical twins. Identical twins are always the same gender since they have the same chromosomes.
Do twins need to be in the same sac to be identical?
they are always the same gender
Are identical twins always the same size and birth weight?
No
How do you determine who is the father if identical twins have same dna?
Identical twins will have the same father, so a paternity test is done just like for any kid. With fraternal twins, it is possible, but very, very rare, to have different fathers for the babies.
Why are identical twins always the same gender?
fraternal twins have two different chromosomes
Why Can fraternal twins be different gender but identical twins are always the same gender?
fraternal twins have two different chromosomes
Are identical twins always the same size at adulthood?
no, sometimes one is taller
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.
Why can fraternal twins different genders but identical are always the same gender?
fraternal twins have two different chromosomes
How are twins identical?
Twins are identical because they come from the same egg.
Are monozygotic twins opposite sex?
No, monozygotic twins would be the same sex. Monozygotic twins come from one single fertilized egg, or zygote, which then splits to create two separate zygotes which will be genetically identical, or "identical twins", which will always be of the same gender.
