MHT CET · BIOLOGY · STD 12 - 2. Reproduction in Lower and Higher Animals

Statement I: Penetration of sperm into ovum is a chemical process
Statement II: Acrosome of sperm secretes hyaluronidase which dissolves vitelline membrane of ovum

A Both statement I and statement II are correct
B Both statement I and statement II are incorrect
C Statement I is correct, but statement II is incorrect
D Statement I is incorrect, but statement II is correct

Verified Solution

Answer & Solution

Correct Answer

(A) Both statement I and statement II are correct

Step-by-step Solution

Detailed explanation

Hyaluronidase separates and dissolves the cells of corona radiata.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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Statement I: Penetration of sperm into ovum is a chemical processStatement II: Acrosome of sperm secretes hyaluronidase which dissolves vitelline membrane of ovum

Step-by-step Solution

Statement I: Penetration of sperm into ovum is a chemical process
Statement II: Acrosome of sperm secretes hyaluronidase which dissolves vitelline membrane of ovum