The outer lining of a cell is the:
A) cytosol. B) nucleus.
C) cytoskeleton. D) plasma membrane.
Answer: D
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If you were shipping green bananas to a supermarket thousands of miles away, which of the following chemicals would you want to eliminate from the plants' environment?
A) carbon dioxide B) cytokinins C) ethylene D) auxin E) gibberellic acids
Which scientist first viewed living cells?
a. Robert Hooke b. Matthias Schleiden c. Theodor Schwann d. Anton van Leeuwenhoek e. August Weismann
The reaction catalyzed by reverse transcriptase is
a. DNA ? mRNA. b. mRNA ? cDNA. c. mRNA ? protein. d. DNA ? DNA. e. tRNA ? mRNA.
Consider the following sentence: "The dog did not eat." Which of the following variations of this sentence is most like a base substitution mutation?
A) The dog did not et. B) The dog dog did not eat. C) The did dog not eat. D) The doe did not eat.