Genetic Screening is Necessary Essay - 1679 Words

Genetic Screening is Necessary You are sitting in the counselors office, waiting. You are staring at the walls, trying not to think about what you are considering, but still thinking about it. Will I get cancer? Do I have the gene that will increase my likelihood of getting cancer ? My grandmother had cancer. Two of my aunts have had cancer. What about me? If I have this test, what happens then? The door opens and in walks the counselor. Time to find out about genetic screening. Genetic screening with todays technology is a fairly simple. Its the public opinion and individual morals which make genetic screening complicated. I will address basic background information on genetic screening, the technical aspect of genetic scre†¦show more content†¦One example of genetic screening currently used, is screening for the defective breast cancer (BRCA) alle les. In addition to the genetic screening process, an individual undergoes several counseling sessions. The step by step process of individual genetic screening starts with isolation of an individuals DNA. DNA may be isolated from tissue cells, blood cells, or urine of a child, adult or fetus. The segment of DNA which contains the gene of interest, is th en amplified through the use of PCR (Polymerase Chain Reaction) with primers specific to the segment of DNA. The amplified segment of DNA is then sequenced and analyzed for changes which cause the particular disease. If changes are present, the individu al has a greater likelihood of getting the disease. In the case of BRAC screening an individual with a family history of breast cancer would be genetically screened for a copy of the defective allele. Their DNA would be isolated, amplified, sequenced, and analyzed. If a copy of one of these defective all eles is present, the individual would have a greater likelihood of getting breast cancer than the average individual. Groopman (1998) states Women who inherit a single defective copy of either BRCA1 or BRCA2 are at a significantly increased risk for bea st and ovarian cancer over the course of their lives. Besides the actual screening, an individual also has counseling, both before and after the screening. TheShow MoreRelatedGenetic Testing and Screening Essay1428 Words   |  6 PagesGenetic screening is the testing of variations in gene sequences in protein or DNA. Protein screening is easier, but DNA screening is more powerful. It is a physical screening for a protein or genetic abnormality that may allow detection of a disorder before there are physical signs of it, or even before a gene is expressed if it acts later in life. (web). This is a technique that is used on nonhuman species such as plants and some animals and is not questioned. The real question is if we shouldRead More The Genetic Screening Dilemma Essays1506 Words   |  7 PagesThe Genetic Screening Dilemma The National Academy of Science defines genetic screening as the systematic search of a population for persons with latent, early, or asymptomatic disease. The term genetic testing is often used interchangeably, but differs in that it only targets those individuals believed to be at high risk for an inherited condition. Genetic screening has a much broader target population. As genetic screening becomes easier, faster, and less expensive, there is a growing debateRead MoreGenetic Testing or Genetic Screening1514 Words   |  7 PagesGenetic testing, also known as screening, is a rapidly advancing new scientific field that can potentially revolutionize not only the world of medicine, but many aspects of our lives. Genetic screening is the sequencing of human DNA in order to discover genetic differences, anomalies, or mutations that may prove pathological. 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