Multiple Choice
Which of the following lists correctly identifies the four nitrogenous bases found in DNA?
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7. DNA and Chromosome Structure
DNA Structure
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In the DNA double helix, what type of interaction must be disrupted for the two strands to separate during processes such as replication or PCR denaturation?
A
Hydrogen bonds between complementary nitrogenous bases
B
Covalent phosphodiester bonds in the sugar-phosphate backbone
C
Peptide bonds linking nucleotides together
D
Glycosidic bonds between the base and the deoxyribose sugar
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