Long-distance runners like to train at high altitudes because the lack of oxygen there stimulates the
A) body to produce more lung tissue.
B) capillaries to diffuse oxygen more slowly.
C) muscles to contract faster.
D) bone marrow to make more erythrocytes.
E) muscles to contract less strongly.
D
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DNA microarrays are used when studying the
a. genome b. transcriptome c. proteome d. interactome e. ribosome
Duchenne muscular dystrophy is caused by
a. a mutation that weakens the cytoskeleton of the muscle fiber. b. a mutation that weakens myofibrils. c. a mutation in the X and Y chromosome. d. a mutation that disrupts the sarcomere. e. a mutation that increases the transmission of force.
What do the peaks in the prey population graph signify?
a. At the top of the peak, the prey population is decreasing. b. At the top of the peak, the prey population is increasing. c. At the top of the peak, the prey population is neither increasing nor decreasing(dNprey/dt =0).
Bioassays
a. are performed in a test tube using killed cells. b. expose a population of living organisms to a test substance. c. are used for chemotherapy. d. are none of the above.