THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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codon on the mRNA and the anticodon on the tRNA to which the amino acid is attached.
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anticodon on the mRNA only.
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anticodon on the tRNA to which the amino acid is attached only.
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codon on the mRNA only.
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Detailed explanation-1: -Expert-Verified Answer. Answer: The correct answer for the fill in the blank is D. codon on the mRNA and the anticodon on the tRNA. mRNA ( messenger RNA) carries information for the synthesis of proteins in the form of codon ( a sequence of 3 nucleotides that code for a particular amino acid).
Detailed explanation-2: -Translating an mRNA molecule. Each amino acid added to the growing end of a polypeptide chain is selected by complementary base-pairing between the anticodon on its attached tRNA molecule and the next codon on the mRNA chain.
Detailed explanation-3: -There are three places on the ribosome where tRNAs bind: the A, P, and E site. The A site accepts an incoming tRNA bound to an amino acid. The P site holds a tRNA that carries a growing polypeptide (the first amino acid added is methionine (Met)).
Detailed explanation-4: -The incorporation of the correctly encoded amino acids into proteins depends on the attachment of each amino acid to an appropriate tRNA, as well as on the specificity of codon-anticodon base pairing.
Detailed explanation-5: -Elongation is the stage where the amino acid chain gets longer. In elongation, the mRNA is read one codon at a time, and the amino acid matching each codon is added to a growing protein chain.