Lethal mutations can be recovered in haploid organisms if they are
A. active.
B. conditional.
C. dominant.
D. None of the choices are correct.
Answer: B
Biology & Microbiology
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The organism that exhibits characteristic end-over-end tumbling motility when incubated in nutrient broth at room temperature for 1 to 2 hours is:
a. L. monocytogenes. b. Corynebacterium diphtheriae. c. Bacillus anthracis. d. Bacillus cereus group
Biology & Microbiology
The hormone that is antagonistic in action to
glucagon is a. norepinephrine. b. insulin. c. thyroxine. d. epinephrine. e. mineralocorticoids.
Biology & Microbiology
A fatty acid having double bonds between carbon atoms is a(n)
A. phospholipid. B. animal fat. C. unsaturated fat. D. saturated fat.
Biology & Microbiology
Which one of the following causes a disease characterized by a red rash?
A) Blastomyces B) Coccidioides C) Mycoplasma D) Streptococcus E) RSV
Biology & Microbiology