The base composition of an RNA virus was analyzed and found to be 14.1% A, 14.0% U, 36.2% G, and 35.7% C. Would you conclude that the viral genetic material is single-stranded RNA or double-stranded RNA? 2. The genetic material found within some viruses is single-stranded DNA. Would this genetic material contain equal amounts of A and T and equal amounts of G and C?

Question

Russell Warner

Biology

7 October, 19:27

The base composition of an RNA virus was analyzed and found to be 14.1% A, 14.0% U, 36.2% G, and 35.7% C. Would you conclude that the viral genetic material is single-stranded RNA or double-stranded RNA? 2. The genetic material found within some viruses is single-stranded DNA. Would this genetic material contain equal amounts of A and T and equal amounts of G and C?

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Answers (1)

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Milo Woodard · Answer 1

The correct answer will be -

1. Genetic material of virus is - dsRNA

2. ssDNA does not have equal amount

Explanation:

According to Chargaff's rule the amount of Adenine=Thymine/Uracil and Guanine=Cytosine in the double-stranded DNA or RNA.

If the content of A and U are equal that is 14.1% and G and C are almost equal therefore it follows the Chargaff rule and thus the genetic material is the ds RNA molecule.

The Chargaff rule is not applicable where the genetic material is single-stranded so if the material is single-stranded therefore the A is not equal to T and G is not equal to C.

Thus, dsRNA and ssDNA does not have equal amount is the correct answer.