Rajasthan BoardEnglish MediumSTD 12 ScienceChemistryBiomolecules1 Mark
Question
The two strands in DNA are not identical but are complementary. Explain.
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Answer
In the double strand helix structure of DNA, the hydrogen bond holds the two strands between specific pair of bases. Adenine forms hydrogen bond with thymine, while cytosine forms hydrogen bond with guanine. Therefore, two strands of DNA are not identical but are complementary to each other.
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