Amino acid sequence, in protein synthesis is decided by the sequence of which one of the following?

cDNA

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rRNA

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tRNA

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mRNA

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Solution

The correct option is D mRNA
mRNA is also called messenger RNA. It has codons that are a sequence of three nucleotides. Each codon carries the message specifying a certain amino acid. The tRNA has anticodons that are complementary to the codon on the mRNA. The anticodons aid the tRNA in determining the sequence of amino acid that the mRNA codon has specified. Thus the correct answer is option D.

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