Multiple Choice
Potato spindle-tuber disease, which causes potatoes to become gnarled and cracked, is caused by an infectious agent consisting of a small circular RNA molecule that totally lacks a protein coat. These infectious agents are thought to exert their effects by interfering with the cell's normal path of gene expression. Such an infectious agent is known as __________.
A) a provirous
B) a bacteriophage
C) a viroid
D) a virunette
E) an eviscerion
Correct Answer:
Verified
Correct Answer:
Verified
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