Home › CBSE Class 12 › Biology › Reproductive Health › Oral contraceptive pills (OCPs) work primarily by:
Oral contraceptive pills (OCPs) work primarily by:
AKilling the sperm before they reach the egg
BPreventing ovulation through hormonal feedback
CPermanently sterilising the female reproductive system
DPreventing the embryo from implanting by acidifying the uterus
Answer & Solution
Correct answer: B. Preventing ovulation through hormonal feedback
OCPs contain synthetic estrogen + progestin which inhibit GnRH, FSH, LH → prevent ovulation. They also thicken cervical mucus and thin the uterine lining, but the primary mechanism is preventing ovulation.
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