Creating transgenic animal models for human disease research allows scientists to study new drugs and treatments in animals such as mice, before giving these drugs to humans
a. True
b. False
Indicate whether the statement is true or false
True
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Saprophytic fungi are able to digest organic molecules outside of the organism by means of:
A) apoenzymes. B) coenzymes. C) endoenzymes. D) exoenzymes.
Genes expressed in almost all cell types are called ____ genes
a. housekeeping b. regulated c. activator d. homeotic e. structural
What happens if an incorrect nucleotide is not removed and replaced by the cell's DNA-correcting machinery?
A) A point mutation has occurred. B) The entire chromosome must be destroyed. C) The cell will become cancerous. D) The effect will be lethal, and the cell will die. E) The result is a chromosomal aberration.
All of the following could be reasons why antimicrobic treatment fails exceptÂ
A. a disk diffusion test showing pathogen sensitivity to the antimicrobic. B. not completing the full course of treatment. C. the inability of the drug to diffuse into the infected body compartment. D. a mixed infection where some of the pathogens are drug resistant. E. diminished gastrointestinal absorption due to an underlying condition or age.