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Assertion (A): A human child… (Class 10 Science 2025, Q18)

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ScienceCBSE Class 10 · Board exam 2025, set 31/1/1 · 1 mark · Assertion-reason

CBSE Class 10 Science 2025: question 18

Set in the CBSE Class 10 board exam of 2025, paper 31/1/1, section A, question 18, for 1 mark. Try it first; the hints and our step-by-step solution are below.

Q18 · 1 mark · Assertion-reasonCompetency-basedHeredity

Assertion (A): A human child bears all the basic features of human beings.
Reason (R): It looks exactly like its parents, showing very little variations.

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

Source: official question paper from cbse.gov.in (PDF). See it in the full 2025 board paper, set 31/1/1.

Hints

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

Hint 1

Does sexual reproduction produce identical offspring?

Hint 2

Think about variation between parents and children.

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. Assertion: A child inherits the basic design of the human body. The Assertion is true.

  2. Reason: A child does not look exactly like its parents. Sexual reproduction produces noticeable variations, so the Reason is false.

  3. The answer is option (C).

    1 mark

Answer: Option (C)

Where the marks are

  • Chooses option (C) (1 mark)

Revise the chapter

  • Chapter: Heredity (notes, formulas, where marks are lost and every past question)
Practise this chapterBoard-style questions from Heredity, one at a time, marked against the answer key and marking points.Back to the full paper2025 board paper, set 31/1/1: 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.