HeLa cells have been used in research to

a. identify viral strains.
b. investigate cancer.
c. study the effects of radiation on cells.
d. develop tissue culture techniques that
produced a polio vaccine.
e. all of these.


E

Biology & Microbiology

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What will be an ideal response?

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In the fetus and during early puberty, in addition to corticosteroids, the adrenal cortex produces

a. insulin. b. androgens. c. ACTH d. epinephrine. e. norepinephrine.

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Human blood types follow which of the following inheritance patterns?

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