Mitosis is a cellular process that produces
A. Two genetically identical daughter cells
B. Four genetically identical daughter cells
C. Two similar, but not genetically identical daughter cells
D. Four similar, but not genetically identical daughter cells
Ans: A. Two genetically identical daughter cells
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Which microscope visualizes specimens coated with a thin layer of metal?
a. transmission electron microscope b. scanning electron microscope c. fluorescence microscope d. phase-contrast microscope e. compound microscope
A human white blood cell engulfs a bacterial cell by:
a. carrier-mediated facilitated diffusion. b. exocytosis. c. phagocytosis. d. pinocytosis. e. the sodium-potassium
Which of the following statements is false?
a. The axons of ganglion cells form the optic nerves that carry information to the brain. b. The axons of the optic nerves end in the lateral geniculate nuclei of the thalamus. c. Integration of visual information takes place in the frontal lobes of the cerebrum. d. Neurons in the reticular activating system are involved in visual integration. e. The optic nerves cross to form the optic chiasm
Congenital generalized hypertrichosis is an X-linked dominant disease. If an affected male marries an unaffected female, what is the probability of passing the hypertrichosis gene to his offspring?
a. p=1. b. p=0.5, all sons will be affected. c. p=0.5, all daughters will be affected. d. p=0, none of the children will be affected.