In large genomes, most reciprocal translocations occur in
A. coding DNA.
B. noncoding DNA.
C. open reading frames.
D. closed reading frames.
E. inversion regions.
B
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A new hormone is discovered that appears to play a role in bone development. The hormone is hydrophilic and composed of several amino acid chains. How should this hormone be classified? Choose all that apply
A. as a steroid hormone B. as a peptide hormone C. as an amine hormone D. as a pheromone
Gel electrophoresis is used to separate nucleic acid amplicons based upon what physical property?
a. Sequence b. Duplex formation c. Size d. Secondary folding structure
Which statement about mosses is true?
a. Mosses are sensitive to air pollution. b. Mosses are a seedless vascular plant. c. Mosses display jointed stems and leaves. d. Mosses develop deep rhizoids in the tundra.
Which of the following statements is true?
(a) The NADH dehydrogenase complex can pump more protons than can the cytochrome b-c1 complex. (b) The pH in the mitochondrial matrix is higher than the pH in the intermembrane space. (c) The proton concentration gradient and the membrane potential across the inner mitochondrial membrane tend to work against each other in driving protons from the intermembrane space into the matrix. (d) The difference in proton concentration across the inner mitochondrial membrane has a much larger effect than the membrane potential on the total proton-motive force.