Multiple Choice
In DNA structure, which nitrogenous base forms complementary base-pairing with cytosine (C)?
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7. DNA and Chromosome Structure
DNA Structure
Multiple Choice
In the context of DNA structure, DNA is a polymer made of repeating subunits called:
A
Nucleotides
B
Monosaccharides
C
Fatty acids
D
Amino acids
Verified step by step guidance1
Understand that DNA is a macromolecule composed of smaller repeating units called monomers.
Recall that the monomers of DNA are made up of three components: a phosphate group, a sugar (deoxyribose), and a nitrogenous base.
Identify that these monomers are called nucleotides, which link together to form the DNA polymer.
Recognize that monosaccharides are simple sugars, fatty acids are components of lipids, and amino acids are the building blocks of proteins, so these are not the correct subunits for DNA.
Conclude that the correct repeating subunits of DNA are nucleotides.
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