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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
Nucleotides are linked by
  • A
    hydrogen bonds.
  • ✓
    phosphodiester bonds.
  • C
    peptic bonds.
  • D
    ionic bonds.
✓

Answer

Correct option: B.
phosphodiester bonds.
b
Nucleotides have three components - a nitrogenous base, pentose sugar and a phosphate group. The phosphate group of one nucleotide is linked by phosphodiester bonds with the pentose sugar of the other nucleotide.

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