Q1. [1] § 7.1 DO ORGANISMS CREATE EXACT COPIES OF THEMSELVES? § 7.1.1 The Importance of Variation § 7.3 SEXUAL REPRODUCTION
Assertion (A) : Variations are not often seen in off-springs produced by asexual reproduction.
Reason (R) : DNA molecule generated by replication is not similar to the original DNA.
- (A) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- (B) Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- (C) Assertion (A) is true, but Reason (R) is false.
- (D) Assertion (A) is false, but Reason (R) is true.
Previously asked in CBSE board exam
2026 31/4/1 Q8
Generated by claude-sonnet-4-6 · 2026-06-15 06:41 · grounding rag
Model Answer
(C) Assertion (A) is true, but Reason (R) is false.
Asexual reproduction produces fewer variations, but DNA copies generated by replication are similar to the original (not different), though minor errors may occur.
Explanation
- A is true: The textbook states variations are limited in asexual reproduction since only one individual is involved.
- R is false: The passage clearly says "the DNA copies generated will be similar, but may not be identical" — they are largely similar, not dissimilar. So R incorrectly states the copied DNA is "not similar" to the original.
- Since R is false, option (C) is correct.
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