DARK: Tube 2
The absorbance of this sample should be low as it is left in the dark and the
light depend reactions cannot occur, producing little or no electrons to
reduce the DCPIP.
LIGHT: Tube 3
A. i) Genotype: bbw+w
Phenotype: wild type
bbw+w+ : bbw+w : bbww
wild type : mutant type
ABO Blood Group (Phenotype)
IAIA or IAi
Q 1. In this practical exercise you will be using biuret reagent. Why is biuret
reagent used in this practical?
In this practical we will measure the concentration of protein in silverbeet leaf extract solutions.
Biuret reagent is a solution of alkaline c