Twins who do not share 100 percent of their genes are called
A) dizygotic.
B) monozygotic.
C) identical.
D) discordant.

Question

Quizplus · Accepted Answer

Dizygotic twins, also known as fraternal twins, develop from two separate eggs fertilized by two separate sperm. This means that they share only 50 percent of their genes and can be of different sexes. Monozygotic twins, on the other hand, develop from a single fertilized egg that splits into two embryos. They share 100 percent of their genes and are often referred to as identical twins. Discordant twins refer to a situation where one twin has a particular trait or condition while the other does not, regardless of whether they are monozygotic or dizygotic.

Twins Who Do Not Share 100 Percent of Their Genes