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In DNA percentage of thymine is 20, then...

In DNA percentage of thymine is 20, then what is the percentage of guanine ?

A

`20%`

B

`40%`

C

`30%`

D

`60%`

Text Solution

Verified by Experts

The correct Answer is:
C
Total DNA [100] =A +T +C +G
A= 20% (given)
A= T (base pairing rule)
100 =20 +20 +C +G
C+G =100 -40 =60
C = G= 30 (C= G)
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