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NEET Biology question

BiologyMolecular Basis of InheritanceNEET

Consider the following statements (I-IV) about degeneracy of the genetic code, with reference to serine and proline. I. Serine is coded by six different codons (UCU, UCC, UCA, UCG, AGU and AGC). II. Proline is coded by four different codons (CCU, CCC, CCA and CCG). III. Serine and proline are each coded by only a single, unique codon. IV. Codons for the same amino acid always differ at their first base, never at the third base. Which of the above statements are correct?

Answer: (D)

Solution

Serine is indeed one of the most degenerate amino acids, specified by six codons (I, true), and proline is specified by four codons (II, true); Statement III is false because both amino acids are

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Question ID VK-120596