The correct term to fill in the blank is "no more". Fraternal twins are no more similar genetically than are other brothers and sisters. They are also known as dizygotic twins since they are formed from 2 different amniotic sacs and placentas which means they are totally developed from two different eggs and being fertilized by different sperm cells. So, they have different characteristics. The genetic code they would have would be the same as any other sibling. So, they are not identical. The other type of twins is called the monozygotic or the idetical twins. This type would have the same genetic codes.
