Question

Which one of the following triplet codes, is correctly matched with its specificity for an amino acid in protein synthesis or as start or stop codon:

• A. UCG–Start
• B. UUU–Stop
• C. UGU–Leucine
• D. UAC–Tyrosine

Answer 1

Answer: (D)

UAC–Tyrosine

Answer 2

UAC is the codon that specifies the amino acid Tyrosine in protein synthesis. It is not a start or stop codon. Start codon is typically AUG (not provided in the options), and UUU is a codon for Phenylalanine, not a stop codon.

So, the correct option is (D): UAC–Tyrosine