NEET Biology question

Which is not consistent with double helical structure of DNA?

(A)A = T, C = G
(B)Density of DNA decreases on heating
(C)A + T/C + G is not constantCorrect
(D)Both (a) and (b)

Answer: (C)

Solution

According to Chargaff's rules, the ratio (A+T)/(G+C) is actually constant for a given species (though it may vary between species), so stating that this ratio is "not constant" is inconsistent with the

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Question ID VK-112533