In karyotyping, individual chromosomes may be distinguished from others by
a. a comparison of chromosome lengths.
b. bands produced on chromosomes by differential staining.
c. the position of centromeres.
d. the relative lengths of the "arms."
e. all of these.
E
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What is secondary active transport?
A. the use of the electrochemical gradient of one molecule to move a second molecule B. the movement of potassium ions following the initial movement of sodium ions C. the use of more than one type of transport protein for the movement of a molecule D. the use of a chemical gradient to generate an electrical gradient
Axonal transport of proteins occurs along a track formed by _______.
a. microtubules b. neurofilaments c. anterograde cytoskeleton d. retrograde cytoskeleton
Our most effective weapon against viral infections is
A. vaccinations. B. antibiotics. C. sulfa drugs. D. surgery. E. gene therapy.
If asked to give an example of an endotherm, you would lose points if you wrote
A. rattlesnakes. B. rabbits. C. pigeon. D. mice. E. turkey.