Final answer:
Metaphase I is the phase in meiosis where paired homologous chromosomes align on the metaphase plate with kinetochores facing opposite poles, ready for segregation during anaphase I.
Step-by-step explanation:
During the stage called Metaphase I of meiosis, paired homologous chromosomes are arranged at the center of the cell, on the metaphase plate, with kinetochores facing opposite poles. This is significant for genetic diversity, as the orientation of each pair is random—contributing to the independent assortment of chromosomes.
The spindle fibers, which have attached to the paired homologues at their kinetochores, ensure the chromosomes will be properly segregated during anaphase I. This particular arrangement and subsequent segregation are unique to meiosis I and are critical for reducing the chromosome number by half, which is essential in forming gametes with a haploid set of chromosomes.