As the concentration of an enzyme increases for a given substrate,
A. the reaction rate increases similarly.
B. the turnover number decreases at the same rate that the enzyme concentration increases.
C. the rate of the reaction decreases to a point.
D. there is no change in the reaction.
A. the reaction rate increases similarly.
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Ability of cells to form cell-cell adhesions is fundamental to multicellularity
A. true B. false
What is it called when alleles are randomly lost from a population?
a. mutation b. gene flow c. genetic drift d. nonrandom mating
A cross between homozygous purple-flowered and homozygous white-flowered pea plants results in offspring with purple flowers. This demonstrates
A) the blending model of genetics. B) true-breeding. C) dominance. D) a dihybrid cross. E) the mistakes made by Mendel.
The archaea known as halophiles
A) require temperatures above 45?C to survive. B) require salt concentrations of 9% or greater to survive. C) are members of the phylum Euryarchaeota. D) are members of the Euryarchaeota and require temperatures above 45?C. E) are members of the Euryarchaeota and require salt concentrations above 9%.