Multiple Choice
How do the bases pair from mRNA (codon) to tRNA (anticodon)?
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15. Gene Expression
Genetic Code
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How does a codon determine the function of the protein it is coding for?
A
By altering the protein's post-translational modifications
B
By specifying the sequence of amino acids in the protein
C
By determining the protein's three-dimensional structure directly
D
By influencing the rate of protein synthesis
Verified step by step guidance1
Understand that a codon is a sequence of three nucleotides in mRNA that corresponds to a specific amino acid or a stop signal during protein synthesis.
Recognize that the sequence of codons in mRNA determines the order in which amino acids are added to a growing polypeptide chain, thus specifying the primary structure of a protein.
Acknowledge that the primary structure, or sequence of amino acids, ultimately influences the protein's three-dimensional structure and function, but the codon itself does not directly determine the 3D structure.
Realize that post-translational modifications and the rate of protein synthesis are influenced by other factors, not directly by the codon sequence.
Conclude that the primary role of a codon is to specify the sequence of amino acids in the protein, which is crucial for the protein's function.
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