The process by which complementary DNA is produced from viral RNA using reverse transcriptase enzyme is called reverse transcription. Reverse transcription occurs in HIV. DNA is made from RNA in the process of reverse transcription in corona virus. The DNA is then detected (+ or -) by PCR.
Under the influence of reverse transcriptase enzyme, a sequenced complementary DNA is produced from viral RNA. Reverse transcriptase DNA produces a complementary second strand with one strand. Intrigue enzyme inserts the double helix DNA into the host genome. Viral DNA is transcribed into viral RNA.