Passive immunization
a. causes antibody formation.
b. is the administration of already formed antibodies from another source.
c. is used to prevent a person from becoming infected.
d. has a long lasting helpful effect.
e. is the same thing as immunotherapy.
B
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Microbial plastics are composed of
A) polysaccharides. B) polyhydroxyalkanoates. C) polyaromatic hydrocarbons. D) xenobiotics.
An mRNA sequence is 5?AUG-GGC-ACU-CAU-ACU-UAA3?, where AUG is the start codon and UAA is the stop codon. How many distinct aminoacyl-tRNA synthetases are required to translate the mRNA sequence?
A. 2 B. 3 C. 4 D. 5 E. 6
Which of the following tissues is least likely to
have replacement stem cells in an adult?
a. muscle b. bone c. blood d. skin e. liver
The pleomorphic bacterium ________ is an obligate parasite due to its requirement for NAD+ and heme
A) Neisseria meningitidis B) Streptococcus pneumoniae C) Listeria monocytogenes D) Haemophilus influenzae E) Streptococcus agalactiae