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5.Molecular Basis of Inheritance
normal
Determination of one amino acid by more than one codon is due to
A
redundancy of genetic code.
B
continuous nature of genetic code.
C
punctuation in genetic code.
D
universal nature of genetic code.
Solution
Degeneracy of codons is the redundancy of the genetic code. A single amino acid may be specified by many codon $i.e.,$ called degeneracy. Degeneracy is due to the last base in codon (which is known as wobble base). Thus, first two codon are more important to determine the amino acid and third one differ without affecting the coding i.e., known wobble hypothesis, proposed by Crick which establishes an economy of $tRNA$ molecule.
Standard 12
Biology
