0
Although it is biologically impossible for a single egg to be fertilized twice, it is possible for two different eggs to be released at the same and fertilized by different men resulting in fraternal twins each with a different father. Identical twins cannot have different fathers, but fraternal twins can. Keep in mind both men's sperm must be present to fertilize the eggs.
The term for the occurrence of fraternal twins being born with separate fathers (or triplets, ect. but ONLY fraternal) is called Hetero-paternal Superfecundation and is also referred to as bi-paternal twinning. Once thought to be very rare it is now estimated that one in twelve fraternal twins are actually are bi-paternal. (Wow!)
It's actually common in some other species for a litter to have mixed paternity.
What else can I help you with?
Is it possible for a woman to have twins from two different fathers"?
Yes, it is possible for a woman to have twins from two different fathers. This rare phenomenon is known as heteropaternal superfecundation. It occurs when a woman releases multiple eggs during ovulation and has sexual intercourse with different partners within a short timeframe. Each egg can be fertilized by sperm from a different man, resulting in twins with different biological fathers.
Which type of twins develop from two fertilized eggs?
Twins from different eggs are fraternal twins. They are siblings with the same birthdate. They are twins, but not identical, and can even be girl and boy. It is the same process taking place as a single child that a woman becomes pregnant with, but the process happens with two children at the same time. The woman releases two eggs that month instead of one, and they both are fertilized. That is how this type of twin is produced.
Can two men get a woman pregnant?
Not at the same time to create a single baby. But it is possible that if the woman has two eggs then two different men can fertilize them, resulting in fraternal twins that are half-brothers.
Can you be impregnated by two men?
Yes. It is possible for twins to have different fathers in a phenomenon called heteropaternal superfecundation, which occurs when two of a woman's eggs are fertilized by sperm from two different men.
What is the chances of having twins when your mother has two sets of twins im a twin and your boy friends dads cousins are twins and his grans sisters are twins?
Sounds like a good chance! You sound like my family LOL!
Can fraternal twins be black and white?
Yes, but not monozygotic twins. There are cases where a woman was impregnated by two (or more?) men very close in time to each other, and two ova were fertilized by different men. In that case black and white twins are quite possible.
Why do some twins look different?
Fraternal twins occur when two fertilized eggs are implanted in the uterine wall at the same time. When two eggs are independently fertilized by two different sperm cells, DZ twins result. The two eggs, or ova, form two zygotes, hence the terms zygotic and biovular.Identical twins occur when an egg splits into two; which makes them identical. Identical twins are not hereditary like fraternal twins can be. It is complete coincidence.
Has twins ever been born in two different years?
Twins have never been born in two different years.
Why Can fraternal twins be different gender but identical twins are always the same gender?
fraternal twins have two different chromosomes
Do identical twins develop from two different eggs that are fertilized by different sperm?
No, fraternal twins do.
What combinations would be needed to cause the development of dizygotic twins?
Dizygotic twins, also known as fraternal twins, result from the release and fertilization of two separate eggs by two separate sperm. Therefore, the combination needed is for a woman to release two eggs during ovulation and for both eggs to be fertilized by different sperm, leading to the development of dizygotic twins.
How does a pregnant women have twins?
There are two ways a woman can have twins. One way is that a woman releases two eggs when she ovulates. When her and her partner have sex, both of the eggs become fertilized. The other way is after a woman has sex and the egg is fertilized, it divides in half. When the egg divides in half, this is when you get identical twins.
