Which of the following can be used to accurately describe viruses?
a. They are small, cellular infectious agents that are only capable of reproducing when inside a living cell, and they can attack plants as well as animals.
b. Each is typically a piece of genetic material encased in proteins, and they can reproduce on their own.
c. They can attack plants, animals, and protozoans, and each is typically a piece of self-replicating genetic material encased in proteins.
d. Typically just a piece of genetic material encased in proteins, viruses are small, non-cellular infectious agents that are only capable of reproducing when inside a living cell such as those of plants, animals, fungi, protozoans, or bacteria.
Ans: d. Typically just a piece of genetic material encased in proteins, viruses are small, non-cellular infectious agents that are only capable of reproducing when inside a living cell such as those of plants, animals, fungi, protozoans, or bacteria.
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