Question

1. which of the following structures must be separated to form a haploid cell? a) sister chromatids. b) homologous chromosomes. c) x and y chromosomes during sperm production. d) both a) and b). e) both b) and c).

Explanation:

Haploid cells are formed during meiosis. Homologous chromosomes separate during meiosis I to reduce the chromosome number by half. X and Y chromosomes are homologous in males and separate during sperm - production meiosis to form haploid sperm cells. Sister chromatids separate during meiosis II, but the cell is already haploid by the end of meiosis I.

Answer:

E. Both b) and c).