Animal viruses can be grown in all of the following except
A) live animal hosts.
B) E. coli cells.
C) embryonated eggs.
D) tissue culture.
E) HeLa cells.
Answer: B
Biology & Microbiology
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(a) two. (b) four. (c) five. (d) six.
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a. H2CO2 b. CO2 c. HCO3- d. H2O e. H2CO3
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The two nucleotide sequences are
a. identical b. 80 to 90% the same c. 80 to 90% different d. none of the above
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The type of selection most likely to act on a well-adapted population in a relatively constant environment is
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Biology & Microbiology