In_______, cells are tagged with a fluorescent dye and injected into a flowing, progressively narrowing stream of fluid, forcing one cell at a time through a laser beam that scatters its fluorescence to a detector.
What will be an ideal response?
flow cytometry, flowcytometry, flow
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Isomers are defined as:
A. molecules with the same number of carbon atoms but potentially different numbers of other atoms. B. molecules with the same chemical formula but different structures. C. atoms with the same number of protons but different numbers of neutrons. D. molecules with the same general three- dimensional structures but different chemical formulas. E. molecules with different chemical formulas but similar biological functions.
Allergies occur when the body responds to _____
a. pathogens c. normally harmless substances b. toxins d. all of these
Stabilizing selection would be present if
A. gene frequencies do not change from one generation to the next. B. mutations constantly replace the genes lost from one generation to the next. C. there are no selecting agents. D. All of these are possible.
Synthetic reactions are hydrolytic reations
a. true b. false