In which of the following stages of the viral infectious cycle do enveloped viruses usually acquire their envelopes?
A. Penetration
B. Release
C. Assembly
D. Component biosynthesis
Answer: B
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Individuals with variations that make them best suited to their environment will, on average, be more likely to
A. be larger B. survive and reproduce C. evolve D. change over time
The chronic use of the ________ class of drugs can increase liver detoxifying enzymes that decrease the effectiveness of antibiotics, anticoagulants, and steroids
Fill in the blank with correct word.
Because oxygen is more electronegative than hydrogen, the water molecule is:
A. ionic. B. hydrophilic. C. hydrophobic. D. nonpolar. E. polar.
A site at the 5' end of a gene where RNA polymerase attaches to initiate transcription and control of gene expression occurs is called a(n).
A. repressor. B. operator. C. CAP. D. operon. E. promoter.