Scelta multipla
In the context of the central dogma, how many nucleotides in an mRNA coding sequence specify one amino acid during translation?
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1. Introduction to Biochemistry
Central Dogma
Scelta multipla
In the context of the central dogma and translation, how many mRNA codons specify one amino acid in a growing polypeptide chain?
A
3 codons
B
2 codons
C
1 codon
D
4 codons
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Recall that the central dogma of molecular biology describes the flow of genetic information from DNA to RNA to protein.
Understand that during translation, the mRNA sequence is read in sets of three nucleotides called codons.
Each codon corresponds to a specific amino acid or a stop signal during protein synthesis.
Recognize that one codon (a triplet of nucleotides) specifies exactly one amino acid in the growing polypeptide chain.
Therefore, the number of mRNA codons that specify one amino acid is one codon.
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