Question
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 .
This question aligns with the NEET BIOLOGY syllabus, specifically targeting concepts from Molecular Basis of Inheritance. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.
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