A reproductive biologist is examining reproductive cells at the end of meiosis I.She notices that each of the two resulting cells are haploid.She also knows that meiosis II will produce haploid cells.How can her observations be explained?

Question

Quizplus · Accepted Answer

During meiosis I, homologous chromosomes separate, resulting in two cells that are haploid but still contain sister chromatids. Meiosis II then separates the sister chromatids, resulting in four haploid cells (gametes). Therefore, the biologist's observation that the resulting cells from meiosis I are haploid is correct and can be explained by the fact that the sister chromatids are still attached. Meiosis II will then separate the chromatids, resulting in four haploid gametes.

A Reproductive Biologist Is Examining Reproductive Cells at the End