Forensic Science B. Forensic Biology. Today’s Agenda: . Review DNA Test- Complete test data analysis form. Last day to reassess is May 3 rd - 15 class days from today Start Forensic Biology Unit- Today is microorganisms… where person died. After the Video:. Turn in your questions.
Forensic Science B Forensic Biology
Today’s Agenda: • Review DNA Test- Complete test data analysis form. Last day to reassess is May 3rd- 15 class days from today • Start Forensic Biology Unit- Today is microorganisms… where person died
After the Video: • Turn in your questions. • Complete the Microbe Murder Mystery lab in the lab area- supplies on the black cart
What is covered under the title “Forensic Biology”? • Microbiology • Entomology • Botany • Odontology • Osteology • Anthropology • Environmental Crimes • Pathology
What is studied in Forensic Microbiology? • Microscopic organisms • Protists, Algae, Fungi & Bacteria • Mostly used in cases of drowning through identification of diatoms
What are diatoms? • Single-celled organisms that are found in salt and fresh water • Types of algae with silica in cell walls • Resistant to degradation • Certain species can only be found in certain areas
How are diatoms used to identify? • If victim’s heart is still beating when he/she inhales water, diatoms will pass from the water to the lungs and eventually to the blood stream • They may be pumped throughout the body • Tend to collect in the bone marrow • Thus, it can be determined that someone was alive when placed in the water • Since there are specific habitats for these, they can also indicate where someone entered the water