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Question #45582
The Question
Intracytoplasmic Sperm Injection (ICSI) is an advanced Assisted Reproductive Technology (ART) used primarily to treat severe male infertility. From an evolutionary and population genetics perspective, widespread reliance on ICSI to maintain Total Fertility Rates (TFR) is most likely to result in which of the following phenomena?
Options
- A.
A reduction in the population's genetic load due to the embryologist's microscopic selection of morphologically normal sperm.
- B.
An increase in the frequency of deleterious alleles, such as Y-chromosome microdeletions, due to relaxed natural selection.
- C.
The promotion of directional selection favoring enhanced natural sperm capacitation in subsequent generations.
- D.
A decrease in the occurrence of chromosomal non-disjunction events during spermatogenesis in the offspring.
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
ICSI_Procedure|Sertoli_Cell_Functions|Public_Health_Indicators
Why This Question Is Tricky
Common Mistakes
Conceptual Pivot: Students often compartmentalize NCERT chapters, viewing ARTs purely as clinical treatments (Reproductive Health) without considering their evolutionary implications (Evolution/Genetics).
The common misconception is equating 'medical selection' (an embryologist picking a sperm under a microscope) with 'natural selection' (sperm competition and biochemical filtering).
Students must synthesize the concept that bypassing the zona pellucida removes the natural biological filter, leading to 'relaxed selection' and the propagation of deleterious alleles (increased genetic load).
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Reproductive Health - Class 12 |
| Concept | Public Health Indicators |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |