Every enzyme functions best at
A. high pH.
B. low pH.
C. optimum pH.
D. neutral pH.
C. optimum pH.
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Which one of the following proteins is not required at low, basal levels for the regulation of the expression of the lac operon?
A. thiogalactoside transacetylase B. galactoside permease C. ?-galactosidase
DNA probes and primers, related to specific locations on the DNA sequence, are made of
A. nucleotide (nitrogen base) sequences. B. None of the answer choices is correct. C. one or more gene locations, for genetic traits. D. wide number of similar genes among other organisms. E. number of chromosomes in the organism.
An industrial ecologist's goals would NOT include:
a. increasing resource use efficiency by altering manufacturing processes. b. designing products that are durable and can be de-manufactured. c. identifying points in the product lifecycle at which waste products can be used in other processes. d. identifying points in the product lifecycle at which waste products can be landfilled.
Choose all of the homeostatic variables that provide energy in animals.
A. Ca2+ B. ATP C. Fat D. Glucose E. Water