Table of Contents. I. Brief Chronology of the Life of Frederick Douglass 1. II. Frederick Douglass: A Biography, by Steven Mintz 3. III. Excerpts from Narrative of the Life of Frederick Douglass, an. American Slave, Written by Himself , and Suggested Discussion.
Since DNA contains genetic code, much of it is studied and analyzed for a variety of reasons. Generally, DNA testing may be used in identification or classification of family trees and it may also be used in various sciences for study in diseases and crimes. In cases where a particular child has no identified father, DNA testing is a big help in tracing the real person who fathered the said child.
The Polymerase Chain Reaction (PCR), is the technique used to detect small amounts of DNA and make enough copies of it to be detectable.All cells, bacteria and viruses contain DNA that is unique to them.he prepared sample is then added to a PCR mixture containing small pieces of DNA (primers) which match the DNA we are testing for, building blocks of DNA, and a polymerase enzyme which can join the blocks together to make copies of DNA.