Question

1.     Chromosomes and genes share all of the following characteristics except that

A.     They are both present in pairs in all diploid cells.
B.      They both undergo segregation during meiosis.
C.      Their copy numbers in the cell decrease after meiosis, and increase during fertilization. D.     They are both copied during the S phase of the cell cycle.
E.      They both pair up with their homologues during prophase of mitosis​

Answer 1

Answer: C. Their copy numbers in the cell decrease after meiosis, and increase during fertilization.

Explanation: Chromosomes and genes share all of the characteristics listed except for C. Chromosomes undergo segregation during meiosis, which results in a decrease in their copy numbers in the cell. However, genes do not undergo segregation during meiosis, so their copy numbers in the cell do not decrease after meiosis. Instead, the copy numbers of genes increase during fertilization when the two haploid cells combine to form a diploid cell.