Suppose that diploid cells of the seminiferous tubules encounter errors during the cell cycle and mitosis. This results in the primary spermatocytes having a 4n number of chromosomes. Assuming that meiosis proceeds normally, which of the following would be true?

a) sperm cells would have an n number of chromosomes. b) sperm cells would have a 2n number of chromosomes. c) secondary spermatocytes would have a 4n number of chromosomes. d) secondary spermatocytes would have an n number of chromosomes.

Explanation:

Primary spermatocytes undergo meiosis for the production of sperm. In meiosis one parental cell produce four daughter cells with half the number of chromosomes in each cell.

As given here; primary spermatocytes having a 4n number of chromosomes  so after meiosis, each sperm cells would have a 2n number of chromosomes, because each daughter cell contain half the number of chromosome as compared to parental cell, so 4n parental cell will produce 2n daughter cell in meiosis.

the answer is d.) homologous; have mammary glands

the correct answer is b