What is the portion of a dicot seedling below the cotyledons called?
A. Subcotyl
B. Hypocotyl
C. Epicotyl
D. Internode
E. Plumule
Answer: B
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Which tissue lines all internal surfaces and the lining of the gut?
a. epithelial b. loose connective c. supportive connective d. fibrous e. adipose
Bacteria use restriction enzymes to
a. integrate viral DNA. b. destroy viral DNA. c. prevent mutation of their DNA. d. copy their genes. e. inhibit the expression of some of their genes.
________ are responsible for toxic red tides
A) Plasmodial slime molds B) Dinoflagellates C) Red algae D) Diatoms
Why is plating efficiency an important metric of consideration in quantitative measurements of virus?
a. Not all host cells are susceptible to viral infection. b. Prophage need to be accounted for. c. Virions do not infect host cells with 100 percent efficiency. d. All of the above are correct.