Correct option is D
In tRNA, the 3' end is where the amino acid attaches during the charging process, a step catalyzed by aminoacyl-tRNA synthetase. This end holds the amino acid that will be incorporated into the growing protein chain. The anti-codon loop of the tRNA contains a triplet of nucleotides that is complementary to the codon of the mRNA. This allows the tRNA to interact with the mRNA during translation, ensuring the correct amino acid is added according to the genetic code.
Information Booster:
The 3' end is crucial for amino acid attachment, where the amino acid is linked to the tRNA during charging.
The anti-codon loop plays a key role in decoding mRNA by base-pairing with the mRNA codon, ensuring correct translation.
Aminoacylation occurs at the 3' end of the tRNA, allowing the tRNA to carry its respective amino acid to the ribosome.
The anti-codon loop's role in tRNA is critical in recognizing the mRNA codon and matching it with the correct amino acid.
During translation, the anti-codon of tRNA pairs with the corresponding codon of mRNA, facilitating protein synthesis.
This pairing ensures the accuracy of protein synthesis, as it directly links the sequence of the mRNA to the corresponding amino acid sequence.
Additional Knowledge:
5' end and D-loop (option 1) involves different structural aspects of tRNA. The D-loop is involved in tRNA recognition and stability, but it does not directly interact with mRNA.
3' end and T-loop (option 2) is incorrect because while the T-loop aids in tRNA structure and ribosome interaction, it is not involved in the amino acid attachment or codon recognition.
5' end and anti-codon loop (option 3) is incorrect as the 5' end does not participate in amino acid charging; the amino acid attaches at the 3' end, not the 5' end.
