Amino acid sequence in protein synthesis is determined by the sequence of
A
rRNA
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B
tRNA
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C
mRNA
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D
cDNA
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Solution
The correct option is C mRNA Messenger RNAs (mRNAs) specify the amino acid sequence of one or more polypeptides; a set of three nucleotides forms a codon which in turn specifies a particular amino acid. Transfer RNAs (tRNAs) read the genetic information present in the form of triplets in the mRNA and transfer the appropriate amino acid to a growing polypeptide chain during protein synthesis. Ribosomal RNAs (rRNAs) are structural constituents of ribosomes that provide the site for proteins synthesis. The DNA synthesized using RNA template is known as cDNA or complementary DNA. RNA retroviruses have reverse transcriptase enzyme that synthesizes a DNA copy (cDNA) of viral RNA.