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STD 12 - 5. molecular basis of inheritance — Biology STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 5. molecular basis of inheritance1 Mark
MCQ
Watson and Crick are known for their discovery that $DNA$
  • A
    Is a single stranded helix
  • B
    Contains deoxyribose only
  • ✓
    Is a double stranded helix
  • D
    Synthesizes $rRNA$
✓

Answer

Correct option: C.
Is a double stranded helix
c
(c)According to Watson-Crick model, the $DNA$ molecule consists of two long, parallel chains which are spirally coiled around a common axis in a regular manner to form a double helix.

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