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Question

The first amino acids taking part in protein synthesis _______.

A
Met
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B
Val
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C
Arg
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D
Tryp
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Solution

The correct option is D Met
Answer is option A i.e. "Met"
Transcription is the first step in decoding a cell's genetic information. This is followed by translation process. Synthesis of a protein starts with the binding of ribosomal sub units and initiation factors to the mRNA. In this process, the initiation factor eIF2 is bound to initiator tRNA (met-tRNA) and not to other tRNAs. Upon recognition of the initiation codon AUG, translation starts with the methionine that is bound to the initiator tRNA.
Thus, answer is "Met"

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