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Assertion (A) : Determining… (Class 12 Biology 2023, Q13)

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BiologyCBSE Class 12 · Board exam 2023, set 57/5/1 · 1 mark · Assertion-reason

CBSE Class 12 Biology 2023: question 13

Set in the CBSE Class 12 board exam of 2023, paper 57/5/1, section A, question 13, for 1 mark. Try it first; the hints and our step-by-step solution are below.

Q13 · 1 mark · Assertion-reasonCompetency-basedReproductive Health

Assertion (A) : Determining the sex of an unborn child followed by MTP is an illegal practice.
Reason (R) : Amniocentesis is a practice to test the presence of genetic disorders also.

  1. (A)Both (A) and (R) are true and (R) is the correct explanation of (A).
  2. (B)Both (A) and (R) are true, but (R) is not the correct explanation of (A).
  3. (C)(A) is true, but (R) is false.
  4. (D)(A) is false, but (R) is true.

Source: official question paper from cbse.gov.in (PDF). See it in the full 2023 board paper, set 57/5/1.

Hints

Open one hint at a time and try again before the next.

Hint 1

Check whether each statement is true on its own.

Hint 2

Does the use of amniocentesis for genetic testing explain why sex-selective MTP is illegal?

Step-by-step solution

Each step shows the marks it earns, as an examiner would award them. Checked by an independent re-solve from the question paper.

  1. Sex determination of the foetus followed by MTP is banned by law to prevent female foeticide, so (A) is true.

    ½ mark

  2. Amniocentesis does detect genetic disorders, so (R) is true. However, it does not explain why the practice is illegal. Hence option (B).

    ½ mark

Answer: (B)

Where the marks are

  • Both true, R not the explanation (1 mark)

Revise the chapter

Practise this chapterBoard-style questions from Reproductive Health, one at a time, marked against the answer key and marking points.Back to the full paper2023 board paper, set 57/5/1: every question, by section.

The question is transcribed from the official paper; figures are described in words. The solution, hints and chapter tag are ours. Spotted an error? Write tosupport@questionbuddy.in.