A new mucinase enzyme was recently discovered that breaks down a glycoprotein in mucous membranes and contributes to bacterial vaginosis (J. Clin. Microbiol. 43:5504). You are a research pathologist testing a new inhibitor of this enzyme that you have discovered and want to design experiments to understand the nature of this inhibition. You have a supply of the normal glycoprotein substrate, the inhibitor, and an assay to measure product formation. (a) How might you determine whether inhibition is reversible or irreversible?
(b) If you find that the inhibition is reversible, how would you determine whether the inhibition is competitive or noncompetitive?

Zoe decided to measure the hand length of each of her classmates. first she marked a line across each student's wrist and lined up a ruler from this mark to the top of the middle finger to measure the length. then she recorded the measurements in the table below. marla did this the same way for each classmate, and then zoe used this ruler to measure each straight line and record the data below. this data is invalid. what is the most likely reason why it is invalid? the ruler is marked in centimeters, but zoe recorded data in inches. the range of lengths is too wide, so zoe must have misread the ruler. marla’s complicated measuring procedure was overly confusing. marla could have been inconsistent while drawing outlines of fingers.

As scientist had investigated evolution from a variety fields they have found

Darwin’s studies of finches on the galápagos islands suggest that the finches’ differences in beak structure were most likely directly due to: