Which of the following is NOT correct concerning interferon?
a) interferon is a protective protein
b) Virus-infected cells produce interferons
c) interferon has no effect on viruses
d) interferon can be used to treat certain viral infections
Answer: c) interferon has no effect on viruses
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Some protists have complex life cycles and change
between the haploid and diploid state. This process is called __________. Fill in the blank(s) with the appropriate word(s).
How does CO2 enter a plant?
A) Through the roots B) Through the stomata C) Through the stroma D) Through the grana
Defensins are short antimicrobial peptides found within mucous membranes and phagocytes
Indicate whether this statement is true or false.
Viruses that infect bacteria are:
a. Not known to exist b. Prions c. Bacteriophages d. Composed of protein only e. Also capable of causing disease in humans