Question

Specific antibodies to a single protein are powerful tools in cell biology because A. they can...

Specific antibodies to a single protein are powerful tools in cell biology because

A. they can be used in differential centrifugations

B. they can be used as specific probes to localize proteins in cells, because they bind to their corresponding antigen with specificity and high affinity.

C. they function to stop infectious diseases.

D. all of the above

E. none of the above

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Answer #1

Specific antibodies to a single protein are powerful tools in cell biology because:
A. They can be used in differential centrifugations - By causing the substance acting as the antigen to clump together and thus become more dense than the other free floating substances
B. They can be used as specific probes to localize proteins in cells, because they bind to their corresponding antigen with specificity and high affinity - This used in fluorescent microscopy by attaching probes to antibodies specific for cell component of interest
C. they function to stop infectious diseases - by being specific to the antigens on infection micro-organims and opsonizing them for other immunological molecules.

ANSWER D. All of the above

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