Question

the region which represents the three base sequence on trna and codes for an amino acid is ______. a anticodon b codon c polypeptide d all of the above

Explanation:

• Anticodon: A sequence of three nucleotides on tRNA that pairs with a complementary codon on mRNA. It helps in bringing the correct amino - acid during translation.
• Codon: A three - nucleotide sequence on mRNA that codes for an amino - acid. It is not on tRNA.
• Polypeptide: A chain of amino - acids linked by peptide bonds. It is the product of translation (formed from amino - acids) and not a three - base sequence on tRNA.

Since the question asks for a three - base sequence on tRNA, only the anticodon fits the description.

Answer:

A. Anticodon