AP BIOLOGY

Detailed explanation-1: -If meiosis happens many times, as in humans, crossovers will happen at many different points. Random orientation of homologue pairs. The random orientation of homologue pairs in metaphase I allows for the production of gametes with many different assortments of homologous chromosomes.

Detailed explanation-2: -During metaphase I, the homologous chromosomes are arranged in the center of the cell with the kinetochores facing opposite poles. The orientation of each pair of homologous chromosomes at the center of the cell is random.

Detailed explanation-3: -Where does random assortment occur in meiosis? Random assortment occurs at metaphase I. Homologous pairs will line up in the middle of the cell completely randomly. The orientation of one pair will not affect the orientation of another.

Detailed explanation-4: -In metaphase I, the duplicated copies of these maternal and paternal homologous chromosomes line up across the center of the cell. The orientation of each tetrad is random. There is an equal chance that the maternally derived chromosomes will be facing either pole.