Retroviruses have the following characteristics, except 

A. reverse transcriptase.
B. DNA genome.
C. envelope.
D. glycoprotein spikes.
E. viral genes that integrate into the host genome.


Answer: B

Biology & Microbiology

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a. Chlamydia trachomatis. b. Bacillus anthracis. c. Treponema pallidum. d. Toxoplasma gondii.

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Glycerol forms the backbone of

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In eukaryotic cells, the sequences of mRNA that are removed from an mRNA molecule before being translated are

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What is the general term for observable changes in cells that occur as a result of the viral infection?

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