Homologous chromosomes separate

• A. Four haploid daughter cells are produced
• B. Chromosomes line up at the center
• C. DNA is replicated to form duplicate chromosomes
• D. Forms two new cells

Answer: (D)

Separation of homologous chromosomes happens during meiosis I and creates two haploid cells. In this stage, paired homologs are pulled to opposite poles by the spindle apparatus, so the cell divides and yields two daughter cells. The sister chromatids stay attached to each other, so each chromosome still consists of two chromatids until later steps.

This outcome—two new cells forming after the first division—fits the question about what occurs when homologous chromosomes separate. The other options describe events that happen earlier or later: lining up at the center occurs before separation, DNA replication happens in the preceding S phase, and producing four haploid cells happens after the second division.