If twins marry twins, are the chances any greater that their offspring will be twins than average?

Answer 1

Only fraternal twinning is inheritable and only on the mother's side. So if the female twins are fraternal twins, she will have a higher chance of conceiving fraternal twins herself - yes, this likelihood will be much much higher than the average person who doesn't have history of fraternal twins in the female's side of the family.

Answer 2

You might think it would make the chances a lot greater, but in most cases, it doesn't increase it at all.

If both sets of twins are identical, it raises the chances none at all, because identical twins happen randomly. It's not a genetic trait.

If the females are fraternal, it does raise the chances, becase fraternal twins can run in families. If it does, then the gene that causes it would cause the female to ovulate two eggs in one month. Two eggs being fertilized at once is what causes fraternal twins.

If both sets are fraternal, it raises it just as much as if only the females were fraternal.

It really doesn't matter what the males are, because twins can only happen is one egg splits into two after fertilization (identical twins) or if two eggs are relased and both are fertilized. However, if the males are fraternal, and that 'twin gene' is passed to their kids, then their grandkids have a slightly higher chance of being twins.

Answer 3

Generally no because most twins (fraternal and identical) are just random. If it's in your genetics though, especially the maternal line, then yes, chances are greater.

Answer 4

The chances if they are fraternal are indeed high. But, if they are identical they are about the same chance.

The resulting children from such a marriage would be that the cousins would be considered genetic siblings.

Answer 5

this normally doesn't mean anything, unless it's fraternal twins, then there is a higher chance. but identical twins are random

Answer 6

eheh thats an odd question
probably though who knows