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Question #45526
The Question
A pregnant female undergoes an illegal amniocentesis procedure, leading to severe chronic psychological stress. This stress alters her neuroendocrine profile, potentially impacting the parturition process. Based on the principles of human reproduction and reproductive health, which of the following statements is INCORRECT?
Options
- A.
Amniocentesis utilizes fetal cells suspended in the amniotic fluid to detect chromosomal aberrations, though its statutory ban aims to prevent female foeticide.
- B.
The normal fetal ejection reflex is initiated by signals from the fully developed fetus and placenta, inducing mild uterine contractions.
- C.
Chronic stress-induced elevation of maternal cortisol directly stimulates the maternal posterior pituitary to synthesize and secrete oxytocin, prematurely initiating parturition.
- D.
Normal parturition involves a positive feedback loop between uterine contractions and maternal oxytocin release, which is further facilitated by prostaglandins.
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
Amniocentesis Ethical Constraint|Hormonal Feedback Loops|Parturition Neuroendocrine Reflex
Why This Question Is Tricky
Common Mistakes
Conceptual Pivot: Location Specificity and Functional Overlap.
Students often confuse the site of release (posterior pituitary) with the site of synthesis (hypothalamus) for oxytocin.
The question wraps this classic NCERT anatomical trap inside a complex clinical scenario involving amniocentesis, stress, and parturition, testing if the student can maintain focus on core physiological facts amidst high-level application text.
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Reproductive Health - Class 12 |
| Concept | Amniocentesis Ethical Constraint |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |