Allyson and Miles were planning on starting a family. Allyson's extended family has several sets of dizygotic twins. Allyson asked her doctor what could cause her to have dizygotic twins. The doctor informed her that the likelihood of having dizygotic twins will be determined by _____.

Question

Quizplus · Accepted Answer

Dizygotic twinning is determined by the genetics of the mother, specifically, her ability to release multiple eggs during ovulation. Therefore, the likelihood of having dizygotic twins is determined by the mother's genes. Factors such as the husband's genes and the environment cannot directly influence the likelihood of having dizygotic twins.

Allyson and Miles Were Planning on Starting a Family