CBSE Class 12 Biology Chapter 12 Competency-Based Questions: Reproductive Health

The CBSE Class 12 Biology Chapter 12 “Reproductive Health” focuses on key topics like reproductive health problems, contraceptive methods, and related medical procedures. To help students prepare effectively for their board exams, CBSE has designed competency-based questions that encourage practical application of theoretical knowledge. Below are some sample competency-based questions along with their answers. Additionally, a free PDF containing these questions is available for download.

Sample Competency-Based Questions:

1. Which of the following is an indicator of a reproductively unhealthy society?A. Increase in infant mortality rate
   B. Decline in maternal mortality rate
   C. Widespread awareness of contraceptive methods
   D. Detection and cure of sexually transmitted diseasesAnswer: A. Increase in infant mortality rate
2. Amniocentesis is a medical procedure used to draw amniotic fluid from a developing foetus. Despite being banned in India, why is it still considered important?A. Identification of a decline in the sex ratio
   B. Prevention of sexually transmitted diseases
   C. Determination of the biological sex of the unborn baby
   D. Detection of genetic disordersAnswer: D. Detection of genetic disorders
3. Assertion (A): Periodic abstinence is a natural method of birth control where couples avoid intercourse from day 10 to 17 of the menstrual cycle.
   Reason (R): Ovulation occurs around the middle of the menstrual cycle.Which of the following is correct?
   A. Both A and R are true, and R is a correct explanation of A.
   B. Both A and R are true, but R is not a correct explanation of A.
   C. A is true, but R is false.
   D. A is false, but R is true.Answer: A. Both A and R are true, and R is a correct explanation of A.
4. The Medical Termination of Pregnancy (Amendment) Act, 2017 permits termination on certain grounds. Mention two grounds for medical termination of pregnancy.Answer:
   • If the pregnancy threatens the mental, emotional, or physical well-being of the pregnant woman.
   • There is a risk that the infant will suffer from physical or mental abnormalities and be seriously handicapped.
5. True or False: (a) All contraceptives have the added advantage of protection against sexually transmitted diseases (STDs).
   (b) Natural birth control methods have negligible side effects.Answer: (a) False. Contraceptives like IUDs and pills do NOT protect against STDs.
   (b) True. Natural methods like periodic abstinence and coitus interruptus have negligible side effects as no medicines or devices are involved.
6. You are asked to create a poster on birth control methods available to males. Mention two methods and briefly describe their working principles.Answer:
   • Method: Condoms
     Working: Acts as a barrier to prevent sperm from meeting the ovum.
   • Method: Vasectomy (Sterilisation)
     Working: Blocks the transport of sperm to the urethra by cutting or sealing the vas deferens.

To download the complete set of CBSE Class 12 Biology Chapter 12 Reproductive Health Competency-Based Questions in PDF format, follow the link provided in the article.

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