Which of Following Best Describes the Process for Attachment of Amino

Which of following best describes the process for attachment of amino acid to the appropriate tRNAs? (Note: AA = amino acid,P_i = phosphate,PP_i = pyrophosphate)

A) AA + ATP → AA-P + ADP then AA-P + tRNA → AA-tRNA + P_i
B) AA + ATP → AA-AMP + PP_i thenAA-AMP + tRNA → AA-tRNA + AMP
C) tRNA + ATP → tRNA-P + ADP then tRNA-P + AA → AA-tRNA + P_i
D) tRNA + ATP → tRNA-AMP + PP_i then tRNA-AMP + AA → AA-tRNA + AMP
E) AA + GTP → AA-GMP + PP_i then AA-GMP + tRNA → AA-tRNA + GMP

Correct Answer:

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