Yes.
The mother carries the twin gene and can pass it onto her children. However, only her daughters can give birth to twins. Her sons can inherit the twin gene and pass that onto their daughters, who can give birth to twins. But her sons will only become fathers of twins if their wife has the twin gene. So the chances of having twins if your husband is a twin is not possible unless you have the gene. However, if your grandfather passed the gene to his daughter (your mother) and she passed the gene to you, then, yes you could have twins if your grandfather is a twin.
i say that identical twins are the least rare because like me a fraternal twin i only know 1 pair of fraternal twin.
Maurice was the fraternal twin of Robin. Maurice died in 2003.
Yes. It is possible to have a set of fraternal twins in which there is one boy and one girl.
Fraternal twins.
they are fraternal twins because they do not have the DNAfraternal.
The probability is the same as if you had no history of twins in your family. There is no genetic component with identical twins, it is just something that happens. Fraternal twins occur if a mother "drops" two eggs in one month. Your father being a fraternal twin does not make you "drop" more than one egg in a month and so does not increase your chances of having twins. Your maternal grandfather being a fraternal twin did not effect your mother's ability to drop more than one egg and so did not effect your ability to "drop" more than one egg and so does not increase your ability to have twins.
Identical twins happen by chance only; 4 per 1000 births or 0.004 probability. Fraternal twin probability is increased only if it is on the mother's side; so this does you affect your circumstance (from what you have stated). The chance of fraternal twins is 1 in 60 or 0.017. So, your probability of identical twins is 0.004 and fraternal twins is 0.017 (BTW, I have triplets).
that means they are not identical twins they are fraternal they each got different genes
Women who are themselves fraternal twins have a 10% chance of producing twins, identical twin women have only a 0.6% probability of having a twin birth.
The same as anyone else, unless his partner has a history of twins in her family. Twins are a result of the ovum (egg) splitting after fertilisation (identical twins), or the release of two eggs during ovulation (fraternal twins). It has no bearing on the male contribution to fertilisation (being the sperm).
P(twin)=P(identical)+P(fraternal) P(twin)=0.004 +0.023 P(twin)=0.027 [That's 27 out of 1,000 cases, or 54 persons out of 1027.]