Question

Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis?

1. It results in the formation of haploid gametes
2. Differentiation of gamete occurs after the completion of meiosis
3. Meiosis occurs continuously in a mitotically dividing stem cell population
4. It is controlled by the Luteinizing hormone (LH) and Follicle Stimulating Hormone (FSH) secreted by the anterior pituitary
5. It is initiated at puberty

Choose the most appropriate answer from the options given below:

• A. (c) and (e) only
• B. (b) and (c) only
• C. (b), (d) and (e) only
• D. (b), (c) and (e) only

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Gametogenesis follows different patterns in males (spermatogenesis) and females (oogenesis) regarding timing, continuity, and maturation.
Detailed Explanation:
- (a) Result in haploid gametes: True for both.
- (b) Differentiation after meiosis: True for spermatogenesis (spermiogenesis happens after meiosis II). In oogenesis, the egg is functionally "ready" or matured during the process of meiosis.
- (c) Continuous meiosis from stem cells: True for spermatogenesis (starts at puberty and continues). Oogenesis is arrested at various stages and produces only one egg per cycle.
- (d) Controlled by LH/FSH: True for both.
- (e) Initiated at puberty: True for spermatogenesis. Oogenesis begins during embryonic development.
Step 2: Final Answer:
Statements (b), (c), and (e) are specific to spermatogenesis and do not apply to oogenesis.