This is a simple dilution problem for the EcoRI enzyme solution.
Jason is setting up a reaction with the restriction endonuclease EcoRI. The concentration of the EcoRI enzyme solution is 20,000 units/mL. Jason mixes the following in a test tube:
4 uL dsDNA, 14 uL buffer, 2 uL EcoRI
What is the final concentration of EcoRI enzyme in Jason's reaction?
A. 2,222 units/mL
B. 2,857 units/mL
C. 2,000 units/mL
D. 200,000 units/mL