NEET 2020 · BiologyPrevious Year Question
The first phase of translation is:
Answer: (A) Aminoacylation of tRNA. Answer: (A) Aminoacylation of tRNA.
- A.Aminoacylation of tRNA✓
- B.Recognition of an anti-codon
- C.Binding of mRNA to ribosome
- D.Recognition of DNA molecules
Correct Answer
(A) Aminoacylation of tRNA
Solution & Explanation
Answer: (A) Aminoacylation of tRNA. In the first phase of translation amino acids are activated in the presence of ATP and linked to their cognate tRNA, a process called charging of tRNA or aminoacylation of tRNA. NCERT Ch 5, p.98, lines 39-42: "Therefore, in the first phase itself amino acids are activated in the presence of ATP and linked to their cognate tRNA - a process commonly called as charging of tRNA or aminoacylation of tRNA to be more specific."
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