Filamentous phage
A. only infect E. coli that have pili.
B. only infect E. coli lacking pili.
C. infect E. coli regardless of the presence of pili.
D. do not infect E. coli.
A
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What is the function of the poly A tail?
A. The poly A tail is required for the proper exit of mRNA from the nucleus. B. The poly A tail allows mRNA to bind to the ribosome. C. The poly A tail increases mRNA stability in eukaryotes. D. The poly A tail increases mRNA stability in prokaryotes. E. The poly A tail serves as a termination sequence for RNA polymerase III.
The difference between cofactors and coenzymes is that
a. cofactors are not necessary and coenzymes are necessary. b. cofactors can be inorganic or organic, coenzymes are always inorganic. c. cofactors can be inorganic or organic, coenzymes are just another name for organic cofactors. d. cofactors are always vitamins, coenzymes are always ions. e. cofactors help with essential metabolic reactions, coenzymes assist with nonessential metabolic reactions.
Define the term "evaporite"
What will be an ideal response?
A reaction involving the gain or one or more electrons is a(n) _____ reaction.
a) none of the choices is correct b) oxidation c) reduction d) elimination e) inclusion