Answer
As we know that in double stranded DNA there is a equal content of G and C and also A and T .But in M13 virus this is not the case because it have single stranded circular DNA. And in there chargaff rule is not followed so we have different percentage of A,T,G,C.
Work Step by Step
We know that in double stranded DNA there is a equal content of G and C and also A and T .But in M13 virus this is not the case because it have single stranded circular DNA .And in there chargaff rule is not followed so we have different percentage of A,T,G,C