The apparent Vmax of dihydropteroate synthetase will _____________ when sulfanilamide is present while the Km of this enzyme will ______________
A. decrease / increase
B. not change / increase
C. decrease / decrease
D. not change / decrease
E. not change / not change
B
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In humans, ability to roll the tongue (R) is dominant to being unable to roll (r). Having freckles (F) is dominant to having no freckles (f)
If a woman heterozygous for both traits married a man with no freckles who couldn't roll his tongue, what is the probability that they would have a freckled, tongue-rolling child? A. 9/16 B. 3/16 C. 1/16 D. 3/4 E. 1/4
How did the researchers in Investigating Life 22.5 conduct their experiment studying "ant plants"?
A. They picked other insects off of some leaves. B. They removed the nectar from some leaves. C. They used drops of glue to exclude tramp ants from some leaves. D. They sprayed some leaves with insecticide. E. They picked the tramp ants off of some leaves.
Hydrolases are one important class of enzyme that function to catalyze:a
splitting a molecule using water. b. conversions between isomers. c. reactions in which double bonds are formed. d. oxidation-reduction reactions. e. the transfer of a functional group.
An adult axolotl salamander (Ambystoma mexicanum) retains the juvenile characteristics of external gills and a tail fin
This is an example of what mechanism? a. allometry b. hybridization c. preadaptation d. paedomorphosis e. adaptive radiation