When Corinne looks down the microscope, she says that there is a hormone in the unusual-looking cell. You would not be able to see a hormone through a microscope and the cell is quite clearly a normal-looking eosinophil.
Steven jumps from Mani's boat to the police boat. He throws a policeman off and jumps off himself. But a policeman who was driving the boat disappears when it crashes into the rocks.