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Question #46891
The Question
Which of the following statements INCORRECTLY contrasts the gametogenic chronology and reproductive physiology of humans and cockroaches?
Options
- A.
In human females, primary oocytes are arrested at the diplotene stage of Prophase I, and prolonged arrest increases the risk of chromosomal nondisjunction.
- B.
Human spermatogenesis is a continuous process initiated at puberty, whereas human oogenesis is discontinuous and requires fertilization to complete Meiosis II.
- C.
Unlike the discontinuous oogenesis in human females, adult female cockroaches exhibit continuous gamete production, where fertilized eggs are encased in oothecae formed by the mushroom gland.
- D.
While human meiotic arrest failures can lead to aneuploidies, a structural disruption of the spermatheca in a female cockroach would directly impair the fertilization of continuous ova.
Check Your Answer
Correct Answer
Step-by-Step Solution
Explanation
How the Examiner Thinks
Comparative_Analysis
Sharpen your ability to evaluate multiple scenarios and distinguish between competing potential answers.
Concepts Behind This Question
Meiotic Arrest Points|Spermatogenesis vs. Oogenesis Chronology|Cockroach Reproductive Dimorphism
Why This Question Is Tricky
Common Mistakes
Conceptual Pivot: Sexual dimorphism in cockroach reproductive anatomy.
The question uses 'Cognitive Overload' by mixing advanced human meiotic arrest concepts (Diplotene/Metaphase II, Nondisjunction) with a fundamental structural fact from cockroach anatomy.
Students often fail to distinguish between male (Mushroom gland) and female (Collaterial gland/Spermatheca) accessory structures in cockroaches when distracted by the complex comparative physiology.
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Structural Organisation in Animals - Class 11 |
| Concept | Cockroach Reproductive Dimorphism |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |