What is the primary determinant of the function and specificity of an enzyme?
a. the cofactors bound to the enzyme
b. the presence or absence of an allosteric regulator
c. prosthetic groups
d. the enzyme's conformation
e. the pH of its environment
ANSWER: d
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A test cross can be used to do all of the following except
A. determine whether an individual that displays a dominant phenotype is homozygous for the trait. B. determine whether an individual that displays a dominant phenotype is heterozygous for the trait. C. gather genotype information from phenotype information. D. identify the chromosome on which a gene is located.
If a cell has the partial diploid genotype lacI+ lacO+ lacZ- lacY+ _______________________ lacI- l acO+ lacZ+ lacY- , how will its gene expression in the presence of allolactose?
Fill in the blank(s) with correct word
________ is characterized by unusually warm ocean temperatures in the eastern Pacific.
Fill in the blank(s) with the appropriate word(s).
Hawaiian fruit flies provide an example of which of the following?
a. founder effects b. genetic drift c. adaptive radiation d. founder effects and genetic drift e. founder effects, genetic drift and adaptive radiation