Is your presumptive Staphylococcus a potential pathogen? • Deoxyribonuclease (DNase) agar • What exoenzyme does this plate test for? • What is an exoenzyme? Uninoculated • Name the indicator. • Name the substrate present in the agar that will be broken down by the enzyme. Give describe what a positive and negative reaction look like. 24-48 hour incubation Methyl green DNASE agar used in the lab does not need HCI • Is your sample DNAse + or DNASE -?

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Hematology

Hematology is the branch of biology. Hematology is the medical field that deals with the treatment of blood disorders and cancers, such as hemophilia, leukemia, lymphoma, and sickle-cell anemia. Hematologists and hematopathologists are medical professionals who specialize in illnesses of the blood and its components.