/* MARKETING SCRIPT */ ?>
a. tyrosinase
b. lactic dehydrogenase
c. tryptophanase
d. carbonic anhydrase
a.
Tyrosinase is a copper-containing enzyme present in plant and animal tissues that catalyzes the production of melanin and other pigments from tyrosine by oxidation, as in the blackening of a peeled or sliced potato exposed to air.