The fact that most monosomies and trisomies are lethal to human embryos illustrates the
A) importance of the orderly distribution of genetic material during meiosis.
B) exchange of genetic information during crossing over.
C) advantage of sexual reproduction to the survival of a population.
D) fact that each chromosome contains a single molecule of DNA.
E) formation of haploid gametes as a result of meiosis.

Question

Quizplus · Accepted Answer

The orderly distribution of genetic material during meiosis is essential for the proper segregation of chromosomes, and any errors can result in monosomies or trisomies. These abnormalities are often lethal to human embryos, emphasizing the importance of proper chromosome segregation during meiosis.

Answer: C
 While sexual reproduction can increase genetic diversity and potential for adaptation, it is not necessarily the cause of the lethality of most monosomies and trisomies.

Answer: D
 This statement is not directly related to the lethality of monosomies and trisomies.

Answer: E
 While meiosis does result in haploid gametes, this statement does not explain the lethality of most monosomies and trisomies.

The Fact That Most Monosomies and Trisomies Are Lethal to Human