The subatomic particle with a positive charge is ________.
A. a neutron
B. an electron
C. an isotope
D. an ion
E. a proton
Answer: E
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Elucidation of the histone code might
A. allow us to turn specific genes on or off. B. allow the determination of nucleosome composition. C. lead to chromatin remodeling. D. allow us to control translation.
If a mutation occurred in a flatworm such that the flame cells no longer functioned, what do you predict would be the consequence?
A. The parasitic forms could no longer hold onto their host. B. Excretory function would be impaired. C. Digestive function would be impaired. D. Nerve function would be impaired. E. Reproductive function would be impaired.
A nonnative species that was accidentally introduced into Lake Erie by attaching itself to boats is
a. mayflies. b. oligochaete worms. c. phytoplankton. d. salmon. e. zebra mussels.
Why is the number used to demonstrate total cholesterol not sufficient for describing one’s cardiac health risk? What will be an ideal response?