Molecular Basis of Inheritance Question 29

29. In a DNA percentage of thymine is 20 then what will be the percentage of guanine?[2002]

(a) 20

(c) 30

(b) 40

(d) 60

Show Answer

Answer : c

Hints & Solution

(c) According to Chargaff’s rule, the ratio of purine bases to pyrimidine bases is equal. A=T,C=G. If T is 20 then A is 20 and C and G are 30.



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