Genetic Engineering And Forensic Criminal Investigations...

In biology, we learn about the basic building blocks of life. Every living thing contains Deoxyribonucleic Acid (DNA). The discovery of the DNA structure by James Watson and Francis Crick was a major breakthrough in the study of science. DNA is found in all living organisms and transferred to the offspring of that organism and used in general scientific studies, their discovery of DNA has led to advancements in genetic engineering and forensic criminal investigations through DNA profiling; in contrast, it has also led to the exoneration of innocent people which have been accused of crimes. DNA profiling is a technique in which the polymerase chain reaction (PCR) is used by taking a specific segment of DNA and copying it quickly and†¦show more content†¦Through photosynthesis, prokaryotes changed the makeup of the earth’s atmosphere by releasing oxygen into the air; microbes evolved and adapted which brought about cellular respiration which uses the O2 to extract ener gy for food. About 2.1 billion years ago Eukaryotes came into the picture, which, do have nuclei and are multicellular, thus leading to the first multicellular organisms. Throughout and organisms existence, it is ever changing and evolving. Biologically we as a species either need to evolve and adapt of our surroundings or we are doomed to failure. In our world there are many different species in which there are barriers in place that separate them. For instance, reproductive barriers (Prezygotic Barriers) which prevent two different species from mating; Postzygotic barriers which if two species mate they render a hybrid but that hybrid, if it survives, is infertile. Physical barriers (Allopatric Speciation) like rivers, mountains, and oceans, which prevent members of the same species from mating with each other. When these barriers are in place the isolated species develop their own traits and evolve is their own way. Sympatric speciation occurs in populations in the same area but through an abnormality in cell division which creates and extra set of chromosomes, they cannot reproduce, this isShow MoreRelatedThe Role of Dna Technology in Crime Inves tigation5441 Words   |  22 PagesDNA profiling DNA profiling (also called DNA testing, DNA typing, or genetic fingerprinting) is a technique employed by forensic scientists to assist in the identification of individuals on the basis of their respective DNA profiles. DNA profiles are encrypted sets of numbers that reflect a persons DNA makeup, which can also be used as the persons identifier. DNA profiling should not be confused with full genome sequencing. It is used in, for example, parental testing and rape investigationRead MoreA Research On Forensic Science1203 Words   |  5 PagesForensic science is the application of scientific analysis to tangible objects related to criminal activity. As science expands in its research, it is applied to the forensics field. Among the most prevalent is biotechnology. Biotechnology was developed by the manipulation of biological elements and remains closely tied to society and it needs. Although many of the advances and discoveries are used to produce goods as foods, and medications many of the innovations benefit forensic science as wellRead MoreThe Applications of DNA Typing 1619 Words   |  7 PagesDNA Typing has become more present in the world with the creation of new technology, allowing justice to be served in courtrooms, helping to identify bodies after major devastating events have occurred, and also in processes that the average human does not pay much attention to such as the production of biofuels. The process of DNA Typing is not easy considering the fact one must first go through the multi-step process of DNA extraction. Along with DNA Typing also comes the job opportunities that