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CTET 7 Feb 2026 Paper 1, Question 1

Topic: Heredity and environment

Q1

Read the following statements :
Assertion (A) : Some children have characteristics that resemble their parents while others are markedly different from their parents.
Reason (R) : Working out how much of any characteristic is due to nature or genes and how much is due to nurture or environment is a complex issue.
Choose the correct option.

  1. (1) Both A and R are true and R is the correct explanation of A.Correct answer
  2. (2) Both A and R are true but R is not the correct explanation of A.
  3. (3) A is true but R is false.
  4. (4) Both A and R are false.

Solution.

CBSE answer: (1)

Answer: (1) Both A and R are true and R is the correct explanation of A.

  1. A is true: a child resembles parents in some traits and differs sharply in others.
  2. R is true: every trait comes from heredity and environment acting together, and their shares are hard to separate.
  3. That mixed, entangled origin is why outcomes vary: where genes dominate, the child looks like the parents; where surroundings and new gene combinations matter more, the child turns out different.

Trap: (2) reads R only as a measuring problem, but R's core idea, that both nature and nurture shape every trait, is what explains A.