CBSE Class 12 Chemistry 2023 Outside Delhi Set 3 Solved Paper

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Question : 16
Total: 16
SECTION - B

What are nucleic acids? Why two strands in DNA are not identical but are complementary?
Nucleic Acids: They are naturally occurring chemical compounds that serve as the primary information-carrying molecules in cells. Two main classes are DNA and RNA.
Two main strands are held together by hydrogen bonds between specific pair of bases. Cytosine forms hydrogen bond with guanine while adenine forms hydrogen bonds with thymine. As a result they are complementary to each other.
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