An antigen must be at least ________ amino acids long to be effective in a vaccine
A) 10
B) 25
C) 50
D) 100
Answer: D
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Researchers are interested in the genomes of prokaryotic species for all of the following reasons EXCEPT
A. bacteria cause many diseases that affect people, plants, and animals. B. bacteria reveal modes of infection. C. bacteria are more highly advanced than humans. D. the origin of the first eukaryotic cell probably involved a union between an archaeal and a bacterial cell. E. All of the choices are reasons for studying genomes of prokaryotic species.
The first (capitalized) word of an organism's two-part scientific name denotes the _________.
Fill in the blank(s) with the appropriate word(s).
What happened in an experiment where normal cultured human cells were infected with a virus that carried DNA
encoding for the telomerase catalytic subunit? a. The cells underwent more cell divisions than normal. b. The cells underwent fewer cell divisions than normal. c. The cells died almost immediately. d. The cells did not express the foreign telomerase gene. e. The cell cycle shortened.
First part of the small intestine_______________________
Fill in the blank(s) with the appropriate word(s).