Question

Which of the following statements best describes the major difference between anaphase of mitosis and anaphase I of meiosis? In anaphase I, homologous pairs are separated but sister chromatids stay joined together. In anaphase, spindle fibers pull each set of sister chromatids to opposite ends of the cell. In anaphase I, sister chromatids are separated, forming a total of four haploid cells. In anaphase, tetrads of homologous pairs are separated to form four new nuclei

Answer 1

In anaphase I, homologouspairs are separated but sister chromatids stay joined together. The "I" in anaphase I refers to the first round of cell division, which resembles ordinary mitosis. So in anaphase I, the homologous pairs separate but the sister chromatids stay together. Then the cell goes directly into a second round of cell division - in anaphase II, the sister chromatids are separated into four (now haploid) cells.