Multiple Choice
Each amino acid in a protein is specified by a series of three bases in mRNA called:
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11. Translation
The Genetic Code
Multiple Choice
In the context of the genetic code, what is a DNA triplet?
A
A sequence of three nucleotides in DNA that corresponds to a specific amino acid (or stop signal) via transcription and translation
B
Three adjacent genes on a chromosome that are inherited together as a unit
C
A set of three phosphate groups attached to the 5' carbon of deoxyribose
D
A group of three amino acids in a polypeptide that always functions as a start signal
Verified step by step guidance1
Understand that the genetic code is read in sets of three nucleotides, called codons, during the process of protein synthesis.
Recognize that in DNA, these sets of three nucleotides are referred to as DNA triplets, which serve as the template for RNA codons after transcription.
Know that each DNA triplet corresponds to a specific amino acid or a stop signal during translation, which ultimately determines the sequence of amino acids in a protein.
Eliminate options that describe unrelated concepts: multiple genes inherited together, phosphate groups attached to sugar, or groups of amino acids functioning as start signals.
Conclude that a DNA triplet is best defined as a sequence of three nucleotides in DNA that corresponds to a specific amino acid or stop signal through the processes of transcription and translation.
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