Most diseases caused by viruses are caused by _______.These diseases include polio, hepatitis C, and the common cold.In plants, these viruses kill patches of cells in the leaves or stems of plants, leaving live cells amid a patchwork of discolored dead tissue, giving them the name "mosaic" or "mottle" viruses.
A) DNA viruses
B) negative-sense single-stranded RNA viruses
C) double-stranded RNA viruses
D) positive-sense single-stranded RNA viruses
E) RNA retroviruses

Question

Quizplus · Accepted Answer

Most diseases caused by viruses are caused by positive-sense single-stranded RNA viruses. These include polio, hepatitis C, and the common cold. Negative-sense single-stranded RNA viruses and double-stranded RNA viruses also cause human disease, but to a lesser extent. RNA retroviruses, on the other hand, cause diseases such as HIV/AIDS. Mosaic or mottle viruses are also caused by positive-sense single-stranded RNA viruses in plants.

Most Diseases Caused by Viruses Are Caused by _______