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Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYMolecular Basis of Inheritance1 Mark
MCQ
When more than one codon codes for the same amino acid, what is this called?
  • A
    Universal nature of genetic code
  • ✓
    Redundancy of genetic code
  • C
    Punctuation in genetic code
  • D
    Continuous nature of genetic code
✓

Answer

Correct option: B.
Redundancy of genetic code
The genetic code has 64 codon and each specifies only one amino acids but there are some codons such as $\text{GAA}$ and $\text{GAG}$ both specify one amino acid i.e., glutamic acid and are called as redundancy or degeneracy.

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