Question

Most viruses that infect plants possess
A) single-stranded DNA B) single-stranded RNA C) double-stranded DNA and RNA D) double-stranded RNA only

Answer 1

Answer:

➡ Most viruses that infect plants possess single-stranded RNA.

➡ Viruses that infects animals possess single-stranded RNA or double-stranded RNA or double-stranded DNA.

➡ Viruses that infects bacterias possess double-stranded DNA.

✴ Learn more :

• The genetic material of viruses may be double stranded DNA (ds DNA), e.g., T2, T4 bacteriophages, Pox virus, Hepatitis B virus ; single stranded DNA (ss DNA), e.g., coliphase, Φ×174 (cyclic) ; double stranded RNA (ds RNA), e.g., reo virus, wound tumour virus or single stranded RNA (ss RNA), e.g., tobacco mosaic virus, influenza virus, polio virus, retroviruses (e.g., HIV).