The one-gene:one-enzyme hypothesis emerged from work on which two organisms?

A) E. coli and humans
B) E. coli and yeast
C) Neurospora and Drosophila
D) Drosophila and humans
E) All of the answers listed are correct.


Answer: C

Biology & Microbiology

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The element in the body with the greatest number of atoms is

a. phosphorus. b. oxygen. c. hydrogen. d. calcium. e. carbon.

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The mitochondrial outer membrane contains a channel composed of the protein

a. claudin. b. porin. c. channelin. d. connexin.

Biology & Microbiology

Early biologists referred to animals as ''simple'' and ''advanced,'' but now it is more accurate to use the following terms:

A. ''allopatric'' and ''sympatric,'' since the species is most important. B. "generalists'' and ''specialists,'' since this is how biologists classify characters. C. ''simple'' and ''complex,'' since anatomy terms are more exact. D. ''evolved'' and ''un-evolved,'' since everything ties together with evolution. E. ''primitive'' and ''derived,'' since some early forms became very complex and some evolved forms are derived from them but lost characters and are simple.

Biology & Microbiology

In general, the hydrolysis of ATP drives cellular work by ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology