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Which choice represents a characteristic of malignant tumors? a. Encapsulated b. Ability to spread to distant sites c. Benign d. Cells resemble normal cells Answer- d Anaplastic means the tumor a. is composed of cells that vary in size and shape. b. has cells with darker nuclei than those of normal cells. c. has cells that exhibit an increased nuclear-to-cytoplasmic ratio. d. does not resemble the tissue from which it was derived. Answer- a A benign tumor of bone is called a (n) a....

Which statement is correct concerning chromosomes? a. Chromosomes are located in the nucleus of the cell. b. Mature germ cells (ova and spermatozoa) contain 46 chromosomes. c. Chromosomes can only be seen clearly under a microscope when the nucleus and cell are dividing. d. Chromosomes contain RNA, which directs the production of amino acids, polypeptides, and proteins by the cell. Answer- b The gap 2 (G2) phase of mitosis a. begins when mitotic division ends. b. ends when mitotic divisi...