Pull-down assays require all of the following EXCEPT: A. beads with a protein binding domain immobilized on them.
B. two or more samples for comparative purposes.
C. an antibody that recognizes the protein of interest.
D. affinity chromatography.
E. Actually, all of these are required.

Ascientist wants to determine the effect of a new type of gasoline. he fillsone car with normal gasoline and another identical car with the new gasoline.which is the control group? a. the new type of gasolineb. the car with the normal gasolinec. the car with the new gasolinethe amount of gasoline usedd. the amount of gasoline used

Common symptoms of an iron-defiency anemia include muscle weakness shortness of breath and lightheadedness why does iron deficiency causes these symptoms

What are the two functions of the respiratory system