'Forensic biologyby richard li' presentation slideshows

Forensic Biology by Richard Li

Chapter 4: Serology Concepts. Forensic Biology by Richard Li. What is an antigen?. An antigen is any substance that elicits an immune response and is then capable of binding to the subsequently produced antibodies.

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Forensic Biology by Richard Li

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Forensic Biology by Richard Li, with additions and edits by Ruth Ballard

Lecture 4: Identification of Semen. Forensic Biology by Richard Li, with additions and edits by Ruth Ballard. Outline. Biological characteristics of semen Spermatozoa Detection of semen Presumptive vs confirmatory tests Presumptive tests for semen Detection of sperm

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Forensic Biology by Richard Li

Chapter 6: Identification of Blood. Forensic Biology by Richard Li. Biological Properties of Blood. Normal blood volume is 8% of body weight = 5-8 pints for average adults Fatal if lose 40% or more of blood volume Two portions: Fluid portion Plasma- fluid portion of blood that can clot

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Forensic Biology by Richard Li

Chapter 18: Autosomal STR Profiling. Forensic Biology by Richard Li. Basics. Regions of the human DNA with an array of tandem repeats Length of repeat can be 2-6 bp long Microsatellites or Simple Sequence Repeats Most common STR loci: 100-500 bp Advantages of STR loci:

248 views • 9 slides

Forensic Biology by Richard Li

Chapter 14: DNA Amplification by Polymerase Chain Reaction. Forensic Biology by Richard Li. Basic Principles. Polymerase Chain Reaction (PCR) Exponential amplification of specific sequences of DNA to yield sufficient amplified product: Amplicons Highly sensitive Can amplify small quantities

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Forensic Biology by Richard Li

Chapter 13: DNA Quantitation. Forensic Biology by Richard Li. Basic Principles. Determining the amount of DNA is a sample is essential A narrow concentration range is required for PCR Must use human-specific DNA quantitation methods Quality and Quantity of DNA. Quantitation Methods.

268 views • 7 slides