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Home/ Education/ Exam/ NEET/ Biology/NEET 2025 MCQ with Answer Explanation : “Reproductive Health”.

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On: October 4, 2024 Posted in Biology, Education, Exam, NEET Comments: 0 Views: 160

NEET 2025 MCQ with Answer Explanation : “Reproductive Health”.

  1. Which hormone plays a key role in stimulating the release of the egg from the ovary during ovulation?
    A. Estrogen
    B. Progesterone
    C. Luteinizing Hormone (LH)
    D. Oxytocin

Answer: C. Luteinizing Hormone (LH)

Explanation: Luteinizing Hormone (LH) is responsible for triggering ovulation, which is the release of a mature egg from the ovary. The LH surge occurs in the middle of the menstrual cycle, leading to ovulation.

  1. Which of the following sexually transmitted infections (STIs) can be prevented by vaccination?
    A. Gonorrhea
    B. Syphilis
    C. Human Papillomavirus (HPV)
    D. Chlamydia

Answer: C. Human Papillomavirus (HPV)

Explanation: The HPV vaccine protects against the strains of Human Papillomavirus (HPV) that are most likely to cause cervical cancer and genital warts. Vaccines are not available for bacterial STIs like gonorrhea, syphilis, or chlamydia.

  1. Which of the following is the most effective method of emergency contraception?
    A. Copper IUD
    B. Condoms
    C. Oral contraceptive pills
    D. Rhythm method

Answer: A. Copper IUD

Explanation: The Copper IUD is the most effective method of emergency contraception when inserted within five days of unprotected intercourse. It prevents fertilization and implantation of a fertilized egg. Other methods, such as emergency contraceptive pills, are less effective compared to the Copper IUD.

  1. What is the main role of estrogen in the female reproductive system?
    A. Prevents menstruation
    B. Maintains pregnancy
    C. Promotes the development of secondary sexual characteristics
    D. Stimulates milk production

Answer: C. Promotes the development of secondary sexual characteristics

Explanation: Estrogen is the primary hormone responsible for promoting the development of secondary sexual characteristics in females, such as breast development and the regulation of the menstrual cycle.

  1. Which contraceptive method works by physically blocking sperm from entering the uterus?
    A. Oral contraceptive pills
    B. Diaphragm
    C. Hormonal IUD
    D. Contraceptive patch

Answer: B. Diaphragm

Explanation: A diaphragm is a barrier contraceptive method that physically blocks sperm from entering the uterus. It is placed over the cervix before intercourse to prevent sperm from reaching an egg. It is often used with spermicide for additional protection.

  1. Which of the following sexually transmitted infections (STIs) is caused by bacteria?
    A. HIV
    B. Syphilis
    C. Herpes
    D. Human Papillomavirus (HPV)

Answer: B. Syphilis

Explanation: Syphilis is a bacterial infection caused by the bacterium Treponema pallidum. It can be treated with antibiotics if detected early. HIV, herpes, and HPV are caused by viruses.

  1. Which of the following hormones is involved in maintaining the corpus luteum during early pregnancy?
    A. Estrogen
    B. Progesterone
    C. Human chorionic gonadotropin (hCG)
    D. Oxytocin

Answer: C. Human chorionic gonadotropin (hCG)

Explanation: Human chorionic gonadotropin (hCG) is produced by the placenta during early pregnancy and helps maintain the corpus luteum, which produces progesterone necessary to sustain the pregnancy.

  1. What is the primary function of the hormone oxytocin during childbirth?
    A. Prevents ovulation
    B. Maintains the endometrial lining
    C. Stimulates uterine contractions
    D. Thickens cervical mucus

Answer: C. Stimulates uterine contractions

Explanation: Oxytocin plays a key role in stimulating uterine contractions during childbirth, helping to facilitate labor. It also promotes bonding between the mother and baby after birth.

  1. What is the primary action of oral contraceptive pills?
    A. Prevents ovulation
    B. Blocks sperm entry into the uterus
    C. Increases cervical mucus production
    D. Prevents implantation of a fertilized egg

Answer: A. Prevents ovulation

Explanation: Oral contraceptive pills primarily work by preventing ovulation. The hormones in the pill, estrogen, and progestin, inhibit the release of an egg from the ovary, which prevents pregnancy.

  1. Which of the following is a method of contraception that uses hormones released from a flexible ring inserted into the vagina?
    A. IUD
    B. Contraceptive patch
    C. Vaginal ring
    D. Contraceptive implant

Answer: C. Vaginal ring

Explanation: The vaginal ring is a hormonal contraceptive method where a flexible ring is inserted into the vagina. It releases hormones (estrogen and progestin) that prevent ovulation, similar to oral contraceptive pills.

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