Before You Begin
Question #45519
The Question
During an infertility workup at an RCH center, a male patient's semen analysis reveals a normal concentration of germ cells. However, microscopic examination shows that these cells are spherical, possess abundant cytoplasm, and completely lack a middle piece and flagellum. The detachment of these cells from the Sertoli cells into the seminiferous tubule lumen occurs normally. Which of the following statements correctly identifies the disrupted physiological process?
Options
- A.
Spermiogenesis is inhibited, while spermiation remains intact, resulting in the release of structurally immature spermatids.
- B.
Spermiation is inhibited, preventing the morphological transformation of secondary spermatocytes into spermatozoa.
- C.
The disruption occurred during meiosis II, leading to the release of diploid secondary spermatocytes lacking motility.
- D.
The cells failed to undergo capacitation in the rete testis, preventing the structural development of the axial filament.
Check Your Answer
Correct Answer
Step-by-Step Solution
Explanation
How the Examiner Thinks
Regulatory_Failure
Understand how NOT, EXCEPT, and logical constraints are used to manipulate exam results.
Concepts Behind This Question
RCH Program Objectives|Spermiogenesis vs. Spermiation|Spermatogenesis vs. Oogenesis Chronology
Why This Question Is Tricky
Common Mistakes
The 'Conceptual Pivot' is the strict distinction between 'Spermiogenesis' (morphological differentiation) and 'Spermiation' (physical release).
Students frequently conflate these two terms due to their phonetic similarity.
The question also utilizes a 'Location/Timing Trap' by testing whether students know that structural flagellar development happens in the testis during spermiogenesis, whereas functional maturation (motility) happens in the epididymis, and capacitation happens in the female reproductive tract.
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Reproductive Health - Class 12 |
| Concept | RCH Program Objectives |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |