Which one of the following triplet codes is correctly matched with its specificity for an amino acid in protein synthesis or as a 'start' or 'stop' codon?
UCG – Start
UUU – Stop
UGU – Leucine
UAC – Tyrosine
the genetic code is a triplet code with specific properties. UAC correctly codes for the amino acid Tyrosine. To eliminate the other options: AUG is the unique initiator or 'start' codon (not UCG) and also codes for Methionine . The three 'stop' or terminator codons are UAA, UAG, and UGA (not UUU) . Furthermore, UUU is explicitly identified as the codon for Phenylalanine . Mastering these specific codon assignments is a high-priority strategy for medical aspirants, as NCERT textbooks are the primary source for approximately 95% of NEET Biology questions .
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