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NEET · Biology · STD 12 - 5. molecular basis of inheritance

Which of the following is not a property of the genetic code?

  1. A Non-­overlapping
  2. B Ambiguous
  3. C Degeneracy
  4. D Universal
Verified Solution

Answer & Solution

Correct Answer

(B) Ambiguous

Step-by-step Solution

Detailed explanation

(b) : Genetic code is non­ambiguous. Non­ ambiguous code means that there is no ambiguity about a particular code. One codon specifies only one amino acid and not any other. There are \(64\) codons. Out of \(64, 3\) are stop codons or nonsense codons, \(i.e.\), these do not code for any amino acid and rest \(61\) code for one of the \(20\) amino acids. Neither of them code for more than one amino acids except \(GUG\) which normally code for valine but in certain conditions it also codes for N­formyl methionine as initiation codon.