Two DNA samples A and B have melting temperatures 305K and 320K respectively. Identify the correct statement based on this information.(a) A and B are complementary strands(b) B has more CG pairs than A(c) A has more CG pairs than B(d) A has more hydrogen bonds than BThis question was posed to me by my college professor while I was bunking the class.Asked question is from Biomolecules topic in chapter Biomolecules of Chemistry – Class 12

Two DNA samples A and B have melting temperatures 305K and 320K respec

1.	Two DNA samples A and B have melting temperatures 305K and 320K respectively. Identify the correct statement based on this information.(a) A and B are complementary strands(b) B has more CG pairs than A(c) A has more CG pairs than B(d) A has more hydrogen bonds than BThis question was posed to me by my college professor while I was bunking the class.Asked question is from Biomolecules topic in chapter Biomolecules of Chemistry – Class 12
Answer» RIGHT choice is (b) B has more CG PAIRS than A The best explanation: CG BONDS are made of triple HYDROGEN bonds and AT bonds are made of double hydrogen bonds. Since the melting TEMPERATURE of B is higher than that of A, B should have more hydrogen bonds and as a result more CG pairs.

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