VMMC VMMC Medical Solved Paper-2014

  • question_answer
    A bacteriophage contain A = 22%, T=28%, G = 20% and cytosine = 30% bases composition. What is the genetic material of bacterial virus?

    A) Double stranded DNA

    B) Single stranded RNA

    C) Double stranded RNA

    D) Single stranded DNA

    Correct Answer: D

    Solution :

    Double helical DNA would have a base composition, in which, adehine is equal to thymine and cytosine is equal to guanine. The given DNA does not contain such base composition. So, virus must not have double stranded DNA as its genetic material. Being pyrimidine (C and T) and purine (A, G) the genetic material of bacteriophase is single standed DNA.


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