Normally, when cellular damage has occurred, a fully functional p53 gene will do which of the following?
a. Divide like normal.
b. Divide slower creating fewer cells.
c. Pause in the cell cycle until the damage is repaired.
d. Divide faster creating more cells.
c. Pause in the cell cycle until the damage is repaired.
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As K permeability increases, the rate of water movement into the osmometer ________
a. is unaffected. b. decreases. c. increases.
After the publication of On the Origin of Species, the idea of evolution was generally accepted. What part of Darwin’s
theory of evolution, however, was fiercely debated?
a. natural selection b. environmental change c. gradual change d. the old age of the Earth e. limited resources
Cells or cell parts that detect a stimulus are called
a. effectors. b. integrators. c. sensory receptors. d. regulators. e. detectors.
Nonsynonymous substitutions
A) do not lead to amino acid change. B) lead to amino acid change. C) refer to substitutions in unrelated lineages. D) affect only certain amino acids. E) lead to transversions.