Retroviruses, such as RNA tumor viruses, use __________ to make DNA from their RNA genomes.

A) DNA polymerase
B) DNA-dependent RNA polymerase
C) RNA polymerase
D) primase
E) reverse transcriptase

Reverse Transcriptase

An enzyme that catalyzes the formation of DNA from an RNA template, used by retroviruses in their replication process.

Retroviruses

A group of RNA viruses that insert a DNA copy of their genome into the host cell to replicate, associated with certain cancers and HIV.

RNA Genome

The collection of RNA molecules that encode the genetic information of organisms whose chromosomes are composed of RNA, such as certain viruses.