Question

Under what circumstances can twins be born in humans?

Answer 1

Twins are born when two eggs are fertilized by separate sperms or the single zygote splits and forms two embryos. Atwinis one of twooffspringproduced in the samepregnancy

Answer 2

twins can be born when one sperm goes into one egg or when the sperm split and can have a twin in each egg meaning two separate eggs