The natural color of hair depends on the ratio and quantities of which protein/s?
a) phaeomelanin
b) eumelanin
c) both a and b
d) caleainian
For
brown-red/black hair following pigment is responsible……
a) Phaeomelanin
b) Eumelanin
c) Neuromelanin
d) All of these
The pieces of
tree are put in solution of NaOH and Na2 to remove……….
a) color
b) salt
c) lignin
d) none of these
