Multiple Choice
Which of the following is NOT a component of a DNA nucleotide?
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7. DNA and Chromosome Structure
DNA Structure
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What is the significance of the sequence (order) of the nitrogenous bases in DNA?
A
It stabilizes the double helix structure by forming hydrogen bonds.
B
It determines the genetic information that codes for proteins.
C
It allows DNA to replicate without errors.
D
It controls the number of chromosomes in a cell.
Verified step by step guidance1
Understand that DNA is composed of sequences of nitrogenous bases: adenine (A), thymine (T), cytosine (C), and guanine (G).
Recognize that the order or sequence of these bases forms the genetic code, which carries instructions for building proteins.
Recall that proteins are synthesized based on the sequence of bases in DNA through processes called transcription and translation.
Note that while hydrogen bonding between bases stabilizes the double helix, the sequence itself is crucial for encoding genetic information.
Conclude that the primary significance of the sequence of nitrogenous bases is that it determines the genetic information that codes for proteins.
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