Question

Most organisms carry their hereditary genetic information as DNA. However, some viruses use RNA instead. The HIV virus has RNA, but its genetic information is found in host DNA. How does this happen?

a. An enzyme reverses the usual process, producing DNA from the viral RNA.

b. The viral RNA goes through translation in the host cell.

c. The viral RNA is actually a variant of DNA.

d. Viral RNA attaches to the host’s chromosomes.

Answer 1

Answer=

Most organisms carry their hereditary genetic information as DNA. However, some viruses use RNA instead. The HIV virus has RNA, but its genetic information is found in host DNA.

a. An enzyme reverses the usual process, producing DNA from the viral RNA.

explaination= HINs gene are carried in 2 strands of RNA.while the genetic material of human cells is found in DNA.

In order for the virus to infect human cell ,the process reverse transcription occur.

This process makes a DNA copy of virus RNA.

The viral enzyme called as reverse transcriptase  makes a DNA copy of virus RNA.