Multiple Choice
Which of the following base compositions is possible for double-stranded DNA?
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7. DNA and Chromosome Structure
DNA as the Genetic Material
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Nucleic acid hybridization is based on the fact that:
A
hybridization occurs only between DNA and proteins
B
complementary sequences of nucleic acids can form stable double-stranded molecules through specific base pairing
C
nucleic acids can only hybridize if they are single-stranded RNA molecules
D
all nucleic acids have identical sequences regardless of their origin
Verified step by step guidance1
Understand the concept of nucleic acid hybridization: it refers to the process where two single-stranded nucleic acid molecules (DNA or RNA) form a double-stranded molecule by base pairing.
Recall that hybridization depends on the complementarity of nucleotide sequences, meaning that adenine pairs with thymine (or uracil in RNA) and cytosine pairs with guanine.
Recognize that hybridization does not occur between DNA and proteins, but rather between nucleic acid strands themselves.
Note that nucleic acid hybridization can occur between DNA-DNA, DNA-RNA, or RNA-RNA strands, as long as they are single-stranded and complementary.
Conclude that the correct statement is that complementary sequences of nucleic acids can form stable double-stranded molecules through specific base pairing.
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