Genetic engineering

Trimis la data: 2015-10-10 Materia: Biologie Nivel: Liceu Pagini: 4 Nota: / 10 Downloads: 0
Autor: Simona_F Dimensiune: 17kb Voturi: Tipul fisierelor: doc Acorda si tu o nota acestui referat: 1 2 3 4 5 6 7 8 9 10
vezi mai multe detalii vezi mai putine detalii
Raporteaza o eroare
Genetic Engineering: A leap in to the future or a leap towards destruction? Introduction Science is a creature that continues to evolve at a much higher rate than the beings that gave it birth. The transformation time from tree-shrew, to ape, to human far exceeds the time from an analytical engine, to a calculator, to a computer. However, science, in the past, has always remained distant. It has allowed for advances in production, transportation, and even entertainment, but never in history has science be able to so deeply affect our lives as genetic engineering will undoubtedly do.

With the birth of this new technology, scientific extremists and anti-technologists have risen in arms to block its budding future. Spreading fear by misinterpretation of facts, they promote their hidden agendas in the halls of the United States congress. They fear that it is unsafe; however, genetic engineering is a safe and powerful tool that will yield unprecedented results, specifically in the field of medicine. It will usher in a world where gene defects, bacterial disease, and even aging are a thing of the past.

By understanding genetic engineering and its history, discovering its possibilities, and answering the moral and safety questions it brings forth, the blanket of fear covering this remarkable technical miracle can be lifted. The first step to understanding genetic engineering and embracing its possibilities for society is to obtain a rough knowledge base of its history and method. The basis for altering the evolutionary process is dependant on the understanding of how individuals pass on characteristics to their offspring.

Genetics achieved its first foothold on the secrets of nature's evolutionary process when an Austrian monk named Gregor Mendel developed the first "laws of heredity." Using these laws, scientists studied the characteristics of organisms for most of the next one hundred years following Mendel's discovery. These early studies concluded that each organism has two sets of character determinants, or genes (Stableford 16). For instance, in regards to eye color, a child could receive one set of genes from his or her father that were encoded one blue, and the other brown. The same child could also receive two brown genes from his or her mother.

The conclusion for this inheritance would be the child has a three in four chance of having brown eyes, and a one in three chance of having blue eyes (Stableford 16). Genes are transmitted through chromosomes which reside in the nucleus of every living organism's cells. Each chromosome is made up of fine strands of deoxyribonucleic acids, or DNA. The information carried on the DNA determines the cells function within the organism.

Sex cells are the only cells that contain a complete DNA map of the organism, therefore, "the structure of a DNA molecule or combination of DNA molecules determines the shape, form, and function of the [organism's] offspring" (Lewin 1). DNA discovery is attributed to the research of three scientists, Francis Crick, Maurice Wilkins, and James Dewey Watson in 1951. They were all later accredited with the Nobel Prize in physiology and medicine in 1962 (Lewin 1). "The new science of genetic engineering aims to take a dramatic short cut in the slow process of evolution" (Stableford 25).

  • pag. 1
  • pag. 2
  • pag. 3
  • pag. 4

Nota explicativa
Referatele si lucrarile oferite de Referate.ro au scop educativ si orientativ pentru cercetare academica.

Iti recomandam ca referatele pe care le downloadezi de pe site sa le utilizezi doar ca sursa de inspiratie sau ca resurse educationale pentru conceperea unui referat nou, propriu si original.

Referat.ro te invata cum sa faci o lucrare de nota 10!
Filmele zilei
Linkuri utile
Programeaza-te online la salonul favorit Descarca gratuit aplicatiile pentru iOS si Android Filmulete haioase Filme, poante si cele mai tari faze Jocuri Cele mai tari jocuri de pe net Referate scoala Resurse, lucrari, referate materiale pentru lucrari de nota 10 Bacalaureat 2019 Vezi subiectele examenului de Bacalaureat din 2019 Evaluare Nationala 2019 Ultimele informatii despre evaluare nationala
Toate imaginile, textele sau alte materiale prezentate pe site sunt proprietatea referat.ro fiind interzisa reproducerea integrala sau partiala a continutului acestui site pe alte siteuri sau in orice alta forma fara acordul scris al referat.ro. Va rugam sa consultati Termenii si conditiile de utilizare a site-ului. Informati-va despre Politica de confidentialitate. Daca aveti intrebari sau sugestii care pot ajuta la dezvoltarea site-ului va rugam sa ne scrieti la adresa webmaster@referat.ro.
Confidentialitatea ta este importanta pentru noi

Referat.ro utilizeaza fisiere de tip cookie pentru a personaliza si imbunatati experienta ta pe Website-ul nostru. Te informam ca ne-am actualizat politica de confidentialitate pentru a integra cele mai recente modificari privind protectia persoanelor fizice in ceea ce priveste prelucrarea datelor cu caracter personal. Inainte de a continua navigarea pe Website-ul nostru te rugam sa aloci timpul necesar pentru a citi si intelege continutul Politicii de Cookie. Prin continuarea navigarii pe Website-ul nostru confirmi acceptarea utilizarii fisierelor de tip cookie conform Politicii de Cookie. Nu uita totusi ca poti modifica in orice moment setarile acestor fisiere cookie urmarind instructiunile din Politica de Cookie.


Politica de Cookie
Am inteles