Multiple Choice
In the context of the genetic code, what does DNA ultimately code for?
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11. Translation
The Genetic Code
Multiple Choice
In DNA, what determines the genetic information (genetic code) carried by the molecule?
A
The total number of phosphate groups in the DNA molecule
B
The sequence (order) of nucleotide bases along the DNA strand
C
The number of hydrogen bonds between paired bases
D
The type of sugar in the DNA backbone
Verified step by step guidance1
Understand that DNA is composed of a sugar-phosphate backbone and nitrogenous bases attached to the sugar molecules.
Recognize that the genetic information is encoded not by the backbone components (phosphate groups or sugar type) but by the sequence of the nitrogenous bases.
Recall that the four types of nucleotide bases in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G), and their specific order along the strand forms the genetic code.
Note that the number of hydrogen bonds between base pairs (A-T pairs have 2 bonds, C-G pairs have 3 bonds) affects the stability of the DNA but does not determine the genetic information itself.
Conclude that the key factor determining genetic information is the linear sequence (order) of nucleotide bases along the DNA strand.
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