no it also depend on the father
Well since you have half of your mother's genes, and half of your father's genes' I'd say about 50/50
the genes for twins only matter on your mother's side. Having a male partner with a history of twins will not affect you.
only twins have the same genes (all twins)
They have the same set of chromosomes, which can be also stated as having the same set of genes.
twins are passed down through the mother's genes.
genes
Identical twins. Although horses sometimes have twins I'm not sure if they have identical twins.
50%
The fact that twins run in families is actually a myth. The odds of twins having twins is the same as a non-twin having twins. That is about 1 in 33.
No, Britney Spears is not having twins.
The genes of identical twins are identical because the twins come from one egg that has split after fertilization. Fraternal twins are not identical since they come from two eggs but have occupied the mother's womb at the same time.
It is possible but it is almost impossible to tell. However, the chances of having twins, if your parents had twins without the use of fertility drugs, is greater than if they only had single births. There are old "wives tales" or "myths" about twins, such as that they usually skip a generation. For instance, your mother had twins, so your children (or another one of your mothers daughters, children) will have twins. There is no scientific basis for this.