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NEET2026BiologyChapterActual

Oral administration of small doses of either progestogens or progestogen-estrogen combinations is a popular contraceptive method used by females. Which of the following statements are correct regarding oral contraceptive pills? (a) They inhibit ovulation and implantation. (b) They alter the quality of cervical mucus to prevent or retard the entry of sperms. (c) Pills have to be taken daily for a period of 28 days sta

Options

  1. A(a), (c) and (d) only
  2. B(a), (b) and (e) only
  3. C(b), (c) and (e) only
  4. D(a) and (b) only

Correct answer

B. (a), (b) and (e) only

Step-by-step solution

Oral contraceptive pills contain small doses of either progestogens or progestogen-estrogen combinations. Statement (a) is correct because these hormones inhibit ovulation and implantation. Statement (b) is correct as they alter the quality of cervical mucus to prevent or retard the entry of sperms. Statement (c) is incorrect because pills have to be taken daily for a period of 21 days, not 28 days, starting preferably within the first five days of the menstrual cycle. Statement (d) is incorrect because 'Saheli' is

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