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.
Polymerase chain reactions (PCR) are what allow for small samples of DNA to replicate numerous times and eventually become plentiful enough for proper analysis. PCR is useful â¦ in DNA fingerprinting as they provide a quick and efficient way to replicate DNA.n the simplest form of PCR, there are two types of primers used:   The forward primer   The reverse primer. Edit. Share to: 1  Replace a worn bicycle chain A bicycle chain is always exposed to the elements.