a) DNA
b) RNA
c) DNA and RNA
d) Only proteins and no nucleic acid
b) RNA
c) DNA and RNA
d) Only proteins and no nucleic acid
Ans-[B]
Explanation-An RNA virus is a virus that has RNA (ribonucleic acid) as its genetic material.This nucleic acid is usually single-stranded RNA but may be double-stranded RNA. Notable human diseases caused by RNA viruses include Ebola hemorrhoragic fever, SARS, influenza,hepatitis C, West Nile fever, polio, and measles.
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