Which of the following statements about the nucleus is not true?
A. The nucleus usually contains a nucleolus region which is where ribosome assembly begins
B. The nucleus is the site of protein assembly
C. The nucleus stores the coded instructions for making the cell's proteins
D. The nucleus is surrounded by a nuclear envelope that lets materials in and out
Ans: B. The nucleus is the site of protein assembly
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When activated, trigger(s) a chain reaction that puncture(s) bacterial cell membranes.
A. histamine B. interleukin C. ADH D. complement proteins E. epinephrine
Finches have lived in Hawaii for:a
1000 years. b. 100 000 years. c. 4 million years. d. 5 million years. e. 63 million years.
Four of the five processes listed below are functions
of the nephron. Select the exception. a. filtration b. dilution c. excretion d. reabsorption e. secretion
Oncogenes are derived from
A) malignant tumors. B) proto-oncogenes. C) mutated keratotic cells. D) healthy tumor suppressor genes. E) benign tumors.