to your Health Question
What is my percentage
rate for having twins if my grandmother's siblings are fraternal twins,
and my husbands
mother is a fraternal twin?
If your husband is a twin or has twins in his family, it doesn't affect
your chances of having twins.
If you father is a twin and you are a female, it may slightly increase
The rates for identical twins are 1 in 285 and for fraternal twins 1 in
43 (both are universal and random figures).
Genetics plays a chance in the mother's family but not in the father's
Based on the law of Hellin (1895): twins occur in 1/89 births, triplets
1/ (89)2, quadruplets 1/(89)3.
Identical, or monozygotic, twins are of the same sex and are genetically
identical and physically similar, because they both come from one ovum
(egg), which, after fertilization, divides in two and develops into two
Fraternal, or dizygotic, twins occur when the mother produces two eggs
in one monthly cycle and both eggs are fertilized.
The conceptions may take place on two separate occasions and could involve