KCET · BIOLOGY · STD 12 - 2. Human Reproduction

In the absence of acrosome, the sperm __________

A cannot penetrate the egg
B cannot get energy
C cannot get food
D cannot swim

Verified Solution

Answer & Solution

Correct Answer

(A) cannot penetrate the egg

Step-by-step Solution

Detailed explanation

(A) cannot penetrate the egg,
In the absence of an acrosome, the sperm cannot penetrate the egg because the acrosome contains enzymes necessary to break the outer layer of the egg. Without these enzymes, fertilization cannot occur effectively

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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Column I	Column II
(A) Autosomal trisomy	(i) Turner's Syndrome
(B) Allosomal trisomy	(ii) Mendelian disorder
(C) Allosomal Monosomy	(iii) Klinefelter's Syndrome
(D) Cystic fibrosis	(iv) Down's. Syndrome