Yes, they are genetically related.
Chat with our AI personalities
how does the genetic makeup of a fraternal and identical differ
Identical twins would have the most genetic similarities, since they share the same original 46 chromosomes.
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.
Fraternal twins started from two separate eggs in the mother. By comparison, identical twins started from one egg but it divided at the first stage of development into two separate zygotes (and thus two separate babies).
Fraternal twins are more popular.