MHT CET Medical202626 April 2026Morning ShiftBiologyHuman ReproductionActual
The process of fertilization of a human egg can be confirmed by the presence of __________.
Options
- Aperivitelline space
- B1^ st polar body
- C2^ nd polar body
- Dgerminal vesicle
Correct answer
C. 2^ nd polar body
Step-by-step solution
In human females, the secondary oocyte is arrested in the metaphase II stage of meiosis II before ovulation. The completion of meiosis II occurs only when a sperm enters the secondary oocyte during fertilization. Upon the entry of the sperm, the secondary oocyte completes its second meiotic division, resulting in the formation of a large ovum (ootid) and a small second polar body. Therefore, the presence of the second polar body is a definitive confirmation that the process of fertilization has occurred. Answer: 2^