If 2 identical twins marry another set of identical twins will the babies be the same for both sets? ?

Question

Like 2 girl twins marry 2 guy twins... I mean you're combining the exact same DNA, right? So wouldn't the babies be the same?

Answer 1

That's silly.

Two parents can have lots of children whcih are not identical.  Why would two pairs of identical twins have kids that are more alike then kids from the same exact two people?

However, the kids would be more like siblings, and less like cousins, genetically.

Answer 2

Not necessarily, since gametes are formed by meiosis, where only half of the chromosomes go into a gamete, and that division is random.

If both sets of twins were homozygous for every gene the offspring would be genetically identical, barring any mutation.

Answer 3

Hahahahah good question! No, reproduction is through a process called meiosis. It'll be different in both the cases. I'll cut the explaining junk and make it simple for you - the babies will NOT be the same!  

Answer 4

They would definitely have the same genetic material but they wouldn't look exactly alike.  The obvious would be if they had one boy and one girl.  The second is when your reproductive cells multiply (eggs and sperm)  they do this weird thing called "crossing over" where the DNA you get from your mom mixes with the DNA you get from your dad and recombine to make a new set of genes.  It is highly random and so very unlikely it would happen exactly the same in both pairs of twins.