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Identical twins start out as one egg that for some reason splits in two, and both halves develops into individuals. Genetically, they have to be the same.
They have the same DNA.
What else can I help you with?
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.
Why Can fraternal twins be different gender but identical twins are always the same gender?
fraternal twins have two different chromosomes
What is the most common gender in identical twins?
The most common gender in identical twins is both twins being female.
What are the gender statistics for identical twins?
Identical twins are always the same gender, either both male or both female. This is because they come from a single fertilized egg that splits into two embryos.
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 different genders but identical are always the same gender?
fraternal twins have two different chromosomes
Why are identical twins always the same gender?
fraternal twins have two different chromosomes
Do twins need to be in the same sac to be identical?
No, identical twins can be in the same or separate sacs. Identical twins form when a single fertilized egg splits into two embryos. Whether they share the same sac or have separate sacs is determined by when the split occurs during development.
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)
Identical twins are most likely to share a similar prenatal environment if they share the same?
gender schemas
Is there 7 people that looks the same?
Well there are cases of identical septuplets. Like identical twins, identical septuplets are all born looking identical and of the same gender only difference is there are 7 children not 2
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.
