Genetic Testing :: Genetics Disorders Diseases Papers

Genetic Testing Genetic screening uses a transformation of laboratory procedures to find out if a person has a catching condition or disorder or is likely to develop a infirmity based on his or her genetic makeup. Individuals may deal to be tested if the family shows a history of one specific disease such(prenominal) as Huntingtons Disease or breast quite a littlecer, if they show symptoms of a genetic disorder which could be improved by early diagnosis, or if they atomic number 18 planning a family and are concerned about the accident of passing on a genetic trait to their offspring. This last lineament of screening stand estimate at the parents genotype or look at the genotype of the fetus or newborn. This type of screening can alike look for a specific disorder or can be done as a general test for honey oil disorders as in prenatal testing or more usu bothy newborn screening. Genetic tests use techniques to examine genes or markers near the genes. enjoin testing for diseases such as Cystic Fibrosis and Sickle Cell anaemia come from an analysis of an individuals specific genes. A technique called linkage analysis, or indirect testing, is used when the gene cannot be directly identified only if can be located within a specific neck of the woods of a chromosome. This testing requires additional DNA from an affected family member for comparison. Because separately persons DNA is unique (except for identical twins), genetic tests also can be used for individual identification (DNA fingerprinting). This technique is lots used in forensic work, where samples from a crime scene such as blood or semen could be used as incriminating or acquitting evidence. Genetic testing is a complex process, and the results face both on reliable laboratory procedures and an accurate translation of results. Tests also vary in sensitivity, that is, their ability to detect mutations or to detect all patients who have or will develop the disease. Interpretation of t est results are often complex even for trained physicians and other health sell specialists. Types of Genetic TestingCarrier Identification includes genetic tests used by couples whose families have a history of recessive genetic disorders and who are considering having children. collar common tests include those for cystic fibrosis, Tay-Sachs disease, and sickle-cell trait but more tests are coming on the market at a rattling high rate. Norman Frost of the University of Wisconsin Madison Medical School says, potential difference new genetic tests roll off the conveyor belt of the human beings genome project almost once a week (2).