NEETZoologyHuman Reproduction
What is the result of the second meiotic division?
Options
- AThe formation of a diploid zygote
- BThe fusion of a sperm with an ovum
- CThe formation of a second polar body and a haploid ovum
- DThe completion of the meiotic division of the secondary oocyte
Correct answer
C. The formation of a second polar body and a haploid ovum
Step-by-step solution
During fertilisation, a sperm comes in contact with the zona pellucida layer of the ovum (Figure 2.10) and induces changes in the membrane that block the entry of additional sperms. Thus, it ensures that only one sperm can fertilise an ovum. The secretions of the acrosome help the sperm enter into the cytoplasm of the ovum through the zona pellucida. This induces the completion of the meiotic division of the secondary oocyte . The second meiotic division is also unequal and results in the formation of a second pola