In human females, the entry of the sperm into the cytoplasm of the ovum induces the completion of which of the following cellular events?

Step-by-step solution

In human females, oogenesis is arrested at the metaphase II stage of the second meiotic division before fertilization. The entry of the sperm into the cytoplasm of the secondary oocyte (ovum) through the zona pellucida and the plasma membrane induces the completion of the second meiotic division. This division is unequal and results in the formation of a second polar body and a haploid ovum (ootid). The first meiotic division is completed prior to ovulation, resulting in the formation of the first polar body and th