Which is most directly responsible for the sequence of amino acids in a protein?

a. the sequence of codons in mrna
b. the number of codons in mrna
c. the enzyme that attaches the amino acid to trna
d. the proteins associated with rrna
e. the sequence of anticodons

The sequence of codons in mRNA is most directly responsible for the sequence of amino acids in a protein.

Explanation:

During translation, mRNA is read in the 5´ to 3´ direction, and tRNA transfers amino acids to build the polypeptide chain. The protein is synthesized from the amino terminus to the carboxy terminus. Each amino acid is specified by a codon formed by three bases in the mRNA.

A codon is a sequence of three nucleotides that belongs to a specific amino acid. There are 64 different combinations of three nucleotids, 61 of them are amino acid-specific and the other three are used as a stop signal.

mARNs have a start and end codon that tells the ribosome where to start and stop adding amino acids. When the ribosome reaches the end codon, it means that protein synthesis is finished.

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