You have a stock solution containing 1.25 mM of substrate in borate buffer pH 9.5. You transfer 1.25 mL of this stock into a cuvette and then add 250 ul of enzyme solution to initiate the reaction. What will be the final concentration of substrate in the cuvette following addition of the enzyme? O 1042 mM O 1.25 mM O 0.00625 mM O 1.04 mM O 3750 mM