Question

During gametogenesis, unequal cytoplasmic divisions take place in ..............

• A. multiplication phase of oogenesis.
• B. maturation phase of spermatogenesis.
• C. multiplication phase of spermatogenesis.
• D. maturation phase of oogenesis.

Hint:

In oogenesis, unequal cytoplasmic division results in one large ovum and smaller polar bodies, ensuring proper distribution of resources.

Answer 1

The Correct Option is D

Step 1: Understanding the process of gametogenesis.
Gametogenesis involves the formation of gametes (sperm and eggs). In oogenesis, the process includes unequal cytoplasmic division during the maturation phase, which leads to one large ovum and smaller polar bodies.
Step 2: Analyzing the options.
(A) multiplication phase of oogenesis: Incorrect, the multiplication phase involves mitotic divisions, not unequal cytoplasmic division.
(B) maturation phase of spermatogenesis: Incorrect, the maturation phase of spermatogenesis does not involve unequal cytoplasmic division.
(C) multiplication phase of spermatogenesis: Incorrect, the multiplication phase involves mitosis and does not involve unequal division.
(D) maturation phase of oogenesis: Correct, unequal cytoplasmic division occurs during the maturation phase of oogenesis, producing one large egg and smaller polar bodies.
Step 3: Conclusion.
The correct answer is (D) maturation phase of oogenesis, as this phase involves unequal division of the cytoplasm.