AP BIOLOGY

Detailed explanation-1: -The pairing of homologous chromosomes takes place in prophase I of meiosis which is separated in anaphase I leading to reduction of chromosome number to half. During anaphase II the sepsration of sister chromatids takes place.

Detailed explanation-2: -During anaphase I stage of meiosis, the cell starts to lengthen. The two homologs of each chromosome pair separate and move toward opposite poles, drawn by the microtubules of the spindle apparatus. This contrasts with mitosis, where the sister chromatids of each homolog separate and move toward opposite poles.

Detailed explanation-3: -During anaphase I, the homologous chromosomes are pulled toward opposite poles of the cell. During anaphase I, the homologous chromosomes are pulled toward opposite poles of the cell.

Detailed explanation-4: -Anaphase I begins when homologous chromosomes separate. The nuclear envelope reforms and nucleoli reappear. The chromosomes coil up, the nuclear membrane begins to disintegrate, and the centrosomes begin moving apart. Spindle fibers form and sister chromatids align to the equator of the cell.

Detailed explanation-5: -During meiosis I, homologous chromosomes are separated. Subsequently, during meiosis II, the sister chromatids separate to produce a total of four products, each with half the number of chromosomes as the original cell.