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Question #45545
The Question
A male patient is diagnosed with a genetic mutation that prevents the formation of axonemal dynein arms. His female partner uses a Copper-T (CuT) as a contraceptive method. Which of the following statements accurately evaluates the primary mechanism of action of the CuT in the context of this specific couple?
Options
- A.
The primary mechanism of the CuT is rendered physiologically redundant, as the male's spermatozoa inherently lack functional motility.
- B.
The CuT will primarily act by making the cervix hostile to the sperms, compensating for the bypassed motility-suppression mechanism.
- C.
The cupric ions will fail to increase phagocytosis of sperms within the uterus because the sperms lack active flagellar propulsion.
- D.
The CuT will shift its primary function to inhibiting ovulation to prevent fertilization by the structurally defective sperms.
Check Your Answer
Correct Answer
Step-by-Step Solution
Explanation
How the Examiner Thinks
Evolutionary_Exception
Tackle problems where standard rules evolve or change based on specific environmental constraints.
Concepts Behind This Question
IUDs|Sex-Linked Recessive Inheritance|Sperm Flagellar Proteins
Why This Question Is Tricky
Common Mistakes
Conceptual Pivot: Integrating structural cell biology (flagellar ultrastructure) with reproductive physiology (IUD mechanisms).
The trap relies on functional confusion—students often attribute 'cervical hostility' or 'ovulation inhibition' to all contraceptives, failing to isolate the specific Cu-ion mechanism (motility suppression) which is rendered moot by the male's pre-existing genetic immotility.
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Reproductive Health - Class 12 |
| Concept | IUD Physiological Mechanism |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |