Molecular Basis Of Inheritance Ques 133
133. The following ratio is generally constant for a given species:
[2004]
(a) $\frac{A+G}{C+T}$
(b) $\frac{T+C}{G+A}$
(c) $\frac{G+C}{A+T}$
(d) $\frac{A+C}{T+G}$
Show Answer
Answer : c
Hints & Solution
(c) 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 $\frac{A+T}{C+G}$ is specific for species.
BETA
