In eukaryotic cells,we sometimes find reverse transcriptase activity,even though the cells are not infected with virus.This activity can be attributed to
A)the presence of transposons integrating into polymerase genes.
B)the presence of viroids.
C)the presence of retrotransposons.
D)infection with small bacteria known as mycoplasmas.
E)a novel prion infection.

Question

Quizplus · Accepted Answer

Reverse transcriptase activity in eukaryotic cells can be attributed to the presence of retrotransposons, which are mobile genetic elements that use reverse transcriptase to copy themselves from RNA into DNA and integrate into the host genome. This process can also result in the creation of new genes or regulatory elements. Transposons and viroids do not use reverse transcriptase, and mycoplasmas and prions do not cause this activity.

In Eukaryotic Cells,we Sometimes Find Reverse Transcriptase Activity,even Though the Cells