DNA chips are used
a. to sequence DNA.
b. in DNA fingerprinting.
c. to determine which genes are silent or are
being expressed.
d. in PCR.
e. for all of these.
C
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All of the following are effective for destroying prions EXCEPT
A) boiling. B) incineration. C) NaOH + autoclaving at 134°C. D) proteases. E) None of the answers are correct; each of these will destroy prions.
How does GLUT4 increase the rate of glucose absorption in cells?
a. GLUT4 hydrolyzes glucose into three acetate ions which readily diffuse into the cell. b. GLUT4 causes channel proteins in the plasma membrane to expand and transport glucose. c. GLUT4 encapsulates a glucose molecule, becoming a single-use transport protein. d. GLUT4 causes vesicles to fuse with the plasma membrane, transporting glucose into the cell.
What is the potential significance of root exudates?
What will be an ideal response?
Discuss two hypotheses that attempt to explain the high species richness in the tropics
What will be an ideal response?