The nucleus of a cell contains one or more of these structures that are the site of production of ribosomes.
a) histones b) nucleolus c) chromatin d) nucleosome e) centrosome
b) nucleolus
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Lamellipodia
A) are found in the basal lamina. B) add structural rigidity to cells. C) contain microtubules. D) are thin sheets of cytoplasm use for cell movement. E) do not involve actin or tubulin.
A symptom is ________.
A. measurable by health care personnel B. an objective indication of disease C. a temperature D. a subjective indication of disease
The technique used to produce the data displayed might be useful for a cancer biologist who wishes to
A) determine whether a drug can prevent cell division. B) determine the effect of a drug on microtubule assembly. C) determine the effect of drugs on protein synthesis at various times in the cell cycle. D) determine the effect of a drug on mitochondrial function.
Which group of organisms can trace their ancestry to the protists?
Select one: a. All of the answer choices are correct. b. None of the answer choices is correct. c. fungi d. plants e. animals