Checkpoint genes encoding proteins that promote mitosis are called
a. carcinogens.
b. proto-oncogenes.
c. mitogens.
d. oncogenes.
e. growth inhibitor genes.
b
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Paramecium is a representative of the
a. apicomplexans. b. amoebozoans. c. flagellated protists. d. euglenoids. e. ciliates.
"Plaque-busting" drugs are called
a. antibiotics. b. antihelminthics. c. statins. d. antineoplastics. e. antihypertensives
Which of the following would change the allele frequencies of a population?
A. Tall people in a population preferentially marry other tall people. B. A population on an island remains isolated and no one leaves or moves onto the island. C. Lack of mutation in the DNA D. All of the answer choices would change allele frequencies of a population.
Ventilation causes alveoli of the lungs to have ________ the blood in pulmonary capillaries.
A. the same PO2 and PCO2 as B. a higher PO2 and a lower PCO2 than C. a lower PO2 and a higher PCO2 than D. No answer is correct.