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fraternal twins have two different chromosomes
What else can I help you with?
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.
Do identical twins share the same placenta during pregnancy?
Identical twins can share the same placenta during pregnancy, but it is not always the case. In some instances, identical twins may have separate placentas.
Are twins in the same placenta genetically identical"?
No, twins in the same placenta are not genetically identical. While identical twins share the same DNA, they may have slight genetic differences due to mutations that occur after fertilization.
Are simmes twins identical?
yes they are... simmes twins form from one egg that is in the process of separating into two eggs or identical twins... but the process isn't finished and that is why they are "stuck together"
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
Why can fraternal twins different genders but identical are always the same gender?
fraternal twins have two different chromosomes
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.
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.
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.
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.
Why are identical twins are the same gender?
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.
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.
Do identical twins share the same placenta during pregnancy?
Identical twins can share the same placenta during pregnancy, but it is not always the case. In some instances, identical twins may have separate placentas.
Why can't identical twins be of the opposite sex?
Identical twins are formed from a single fertilized egg that splits into two embryos. Because they share the same genetic material, identical twins are always the same sex. Opposite-sex twins are typically fraternal twins, formed from two separate eggs fertilized by two different sperm.
