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Aminoacyl-tRNA synthetases (amino acid activating enzymes): Require GTP to activate the amino acid “recognize” specific tRNA...

Aminoacyl-tRNA synthetases (amino acid activating enzymes):

Require GTP to activate the amino acid

“recognize” specific tRNA molecules and specific amino acids

Occur in multiple forms for each amino acid

In conjunction with another enzyme attach the amino acid to the tRNA
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Answer #1

The answer will be "recognize" specific tRNA molecules & specific amino acids (Second option).

Explanation: Aminoacyl-tRNA synthetases has one variant for each amino acid (So, we can ignore third option) & recognize a particular amino acid based on the charge, sizes & R groups of amino acid. It also recognizes all the tRNAs that accept a particular amino acid. Thus, correct answer will be second option. During translation initiation GTP is required & not for aminoacyl-tRNA synthetases. So, we can ignore other options.

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