identical twins are from the same egg cell that split, but ferternal twins are from 2 entirely different fertilized egg cells. Thus identical look the same and ferternal can look entirely different.
Identical twins come from one egg and one sperm. Fraternal twins come from two eggs and two sperm.
how does the genetic makeup of a fraternal and identical differ
The girl and boy twins are fraternal, meaning they are not identical.
Brittany and Cynthia Daniel are fraternal twins. Unlike identical twins, who share the same genetic makeup, fraternal twins arise from two separate eggs fertilized by two different sperm cells. The Daniel sisters have distinct physical features and differences in their appearances, which is characteristic of fraternal twins.
(Person that asked the question)-Once twins are born, and old enough to determine whether they are identical or fraternal, how do you know if they are identical, or just fraternal twins that look identical? I was just curious.
identical
Fraternal
Fraternal
If two (or more) eggs are fertilised and develop together you will get fraternal twins. Identical twins are the result of a single fertilised egg dividing into two embryos.
There is no precise percentage of fraternal or identical twins but it is estimated that 2/3 of all twins are fraternal where as 1/3 of twins are identical.
The words identical and fraternal are the opposites. These opposites can be compared to puppies and kittens or black and white for example.
Identical and fraternal twins typically share many similar characteristics