Which one of the following statements is true for protein synthesis (translation)?

The third base of the codon is less specific

The correct answer is option 2.The third base of the codon is less specific.

Protein synthesis is the process of creating a protein chain from messenger RNA (mRNA). mRNA contains a sequence of codons, which are three-letter codes that each specify a specific amino acid. Amino acids are not directly recognized by mRNA but instead are carried to the ribosome by transfer RNA (tRNA) molecules. Each tRNA molecule is specifically designed to carry a particular amino acid, and it has an anticodon loop that can base-pair with a codon on the mRNA.

The third base of a codon is often less specific than the first two bases, which allows for the same tRNA molecule to pair with multiple codons. This is known as wobble pairing. As a result, some amino acids are encoded by more than one codon. This degeneracy in the genetic code allows for a greater diversity of proteins to be encoded by the same DNA sequence.

The amino acid acceptor end of tRNA is located at the 3' end of the molecule, and it has a CCA sequence that is recognized by the ribosome. The amino acid is attached to the tRNA molecule at this end.