Question

Which is most directly responsible for the sequence of amino acids in a protein?

विकल्प

• Sequence of the anticodons.

• Number of codons in mRNA.

• Proteins associated with rRNA.

• The sequence of codons in mRNA.

Answer 1

The sequence of codons in mRNA.

Explanation:

The sequence of amino acids in a protein is directly determined by the sequence of codons in the mRNA molecule. During translation, the ribosome reads the mRNA strand in three-base units called codons, each of which acts as a specific instruction for a particular amino acid. While anticodons on tRNA help deliver the correct building blocks, they only do so by matching the instructions already set by the mRNA sequence. Therefore, the linear order of these mRNA codons serves as the primary blueprint that dictates the exact order and type of amino acids in the resulting polypeptide chain.