How many DNA molecules are found in a human cell?

a. 1,000
b. 46
c. 100
d. 150
e. 10,000


B

Biology & Microbiology

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Cancers of glands or their ducts are called ____

a. sarcomas b. leukemias c. gliomas d. lymphomas

e. adenocarcinomas

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What is direct economic value?

What will be an ideal response?

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All of the following are routine biochemical tests to aid in identifying a species, except

A.) motility. B.) carbohydrate fermentation. C.) catalase test. D.) oxidase test. E.) coagulase test.

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Facilitated diffusion differs from passive diffusion in that facilitated diffusion is

a. mediated only by a protein channel. b. mediated only by a protein carrier. c. mediated by a protein carrier or channel. d. against the concentration gradient.

Biology & Microbiology