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Molecular Basis of Inheritance question

2004 · Q68
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Molecular Basis of Inheritance question

2004 · Q68

NEETBiologyMolecular Basis of InheritanceMCQ+4 / −1
The following ratio is generally constant for a given species :-
  1. A
    A + C / T + G
  2. B
    G + C / A+ T
  3. C
    A + G / C +T
  4. D
    T + C / G + A
View written solutionFree

Correct answer: B

According to Chargaff purines and pyrimidines are in equal amounts. Purine (adenine) is equimolar with pyrimidine (thymine) and purine (guanine) is equimolar with pyrimidine (cytosine).
Base ratio A+TC+G{{A + T} \over {C + G}}C+GA+T​ is specific for species.

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