Meiotic division of the secondary oocyte is completed
Meiotic division of the secondary oocyte is completed
At the time of copulation
After zygote formation
At the time of fusion of a sperm with an ovum
Prior to ovulation
Solution
The entry of sperm into the ovum induces completion of the meiotic division of the secondary oocyte. The second meiotic division is also unequal and results in the formation of a second polar body and a haploid ovum (ootid). Soon the haploid nucleus of the ovum fuses together to form a diploid zygote.