If an organism has 15 pairs of homologous chromosomes, how many chromosomes will each daughter cell have after mitosis and meiosis?

Options

A. 10,15
B. 45,15
C. 15,30
D. 30,15

Answer

D

Explanation

If a cell has 15 pairs chromosomes (n=15), it has 30 chromosomes (2n=30). At the end of mitosis, the two daughter cell will be exact copies of the original cell. Each daughter cell have 30 chromosomes. At the end of meiosis, each cell would have half of the original number of chromosomes, that is 15 chromosomes.