NEETBiologyMolecular Basis of InheritanceMCQ+4 / −1
If A and C make 30% and 20% of DNA, respectively, what will be the percentage composition of T and G?
- AT : 20%, G : 20%
- BT : 20%, G : 30%
- CT : 30%, G : 20%
- DT : 30%, G : 30%
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Correct answer: C
According to Chargaff’s rule, amount of Adenine (A) is equal to thymine and amount of cytosine (c) will be equal to that of Guanine.
So,
A = T = 30% + 30% = 60%
C = G = 20% + 20% = 40%
So, T and G will be 30% and 20% respectively.
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