21- In the following pedigree a rare single gene disease is transmitted. What is the chance that individual IV-1 would be affected? First determine the mode of inheritance of the disease.

All of the following statements about enzymes are correct except: proteolytic enzymes are also known as proteases. pectin methyl esterase causes browning of cut fruit. cloud loss in orange juice is due to enzyme activity. proteolytic enzymes in fish cause tissue softening during storage.