Which statement is true about the relationship between viral infection and cancer?
a) Any virus type can cause cancer if it infects the "right" cell type
b) Only people with compromised immune systems get cancer from viral infection
c) About one fifth of all cancer types can be linked to viral infection
d) Tumors that arise from viral infection never become malignant
Answer: c) About one fifth of all cancer types can be linked to viral infection
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Which sequence of events is required for the brain to interpret sound?
I. Vibration of the basilar membrane relative to the tectorial membrane causes cilia on hair cells to bend and triggers depolarization. II. Hair cells stimulate the production of action potentials in sensory neurons that project to the brain. III. Ganglion cell axons transmit action potentials to the occipital lobe. A. II then I B. III then I then II C. III then I D. I then II E. I then II then III
_____ is the stage of the cell cycle during which a cell is performing its normal metabolic processes
a. G1 b. S c. G2 d. prophase e. telophase
Information is transferred from the nucleus to ribosomes via ________
A) mRNA B) rough endoplasmic reticulum C) DNA D) smooth endoplasmic reticulum
From looking at the plant maize plant you conclude:
A) That the missing nutrient is mobile and likely Ca. B) That the missing nutrient is mobile and likely N. C) That the missing nutrient is non-mobile and likely Ca. D) That the missing nutrient is non-mobile and likely N.