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MODEL PAPER 2025 — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYMODEL PAPER 20251 Mark
MCQ
Assertion (A): Deoxyribonucleoside triphosphates serve dual purposes.
Reason (R): They act as proof readers and provide energy.
  • A
    Both A and R are true and R is the correct explanation of A.
  • B
    Both A and R are true and R is not the correct explanation of A.
  • ✓
    A is true but R is false.
  • D
    A is False but R is true.
✓

Answer

Correct option: C.
A is true but R is false.
A is true but R is false.

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