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Science — CBSE Class 10 board question

Q1. [1]
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.
  1. (A) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
  2. (B) Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
  3. (C) Assertion (A) is true, but Reason (R) is false.
  4. (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
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Previous-year CBSE Grade 10 board exam questions, organised by subject and chapter, each with a model answer — free to read and print.