FISH distinguishes chromosomes by using more than one fluorescent-tagged RNA strand, which will bind to
complementary DNA sequences on a specific chromosome.
_________________ Indicate whether the statement is true or false.
False - DNA
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A rapid, powerful movement of short duration that could not be sustained for long would likely
involve mainly
a. fast anaerobic fibers. b. fast aerobic and fast anaerobic muscle fibers. c. slow muscle fibers and fast aerobic muscle fibers. d. slow muscle fibers. e. fast aerobic fibers.
The first cell seen by Robert Hooke using a
microscope was a a. cork cell. b. cell from an insect’s eye. c. sperm cell. d. protist cell. e. bacterial cell.
ATP is important for chaperone protein function. Why would protein import into mitochondria be disrupted if ATP were depleted from inside mitochondria?
A.) the translocation apparatus would be unable to function without ATP hydrolysis B.) the protein could slip back out of the mitochondria during transport C.) the protein would be blocked from entering the translocation apparatus D.) the signal sequence would not be recognized on the mitochondrial protein
When the neurotransmitter acetylcholine is applied to skeletal muscle cells, it binds the acetylcholine receptor and causes the muscle cells to contract
Succinylcholine, which is a chemical analog of acetylcholine, binds to the acetylcholine receptor on skeletal muscle cells but causes the muscle cells to relax; it is therefore often used by surgeons as a muscle relaxant. Propose a model for why succinylcholine causes muscle relaxation. What might be the mechanism to explain the different activities of acetylcholine and succinylcholine on the acetylcholine receptor?