Genetic Testing :: Genetics Disorders Diseases Papers

Genetic Testing Genetic blanket uses a variety of laboratory procedures to find out if a person has a genetic condition or disorder or is likely to extend a disease based on his or her genetic makeup. Individuals may wish to be try oned if the family bear witnesss a history of one specialized disease such as Huntingtons Disease or breast tailcer, if they show symptoms of a genetic disorder which could be improved by previous(predicate) diagnosis, or if they argon planning a family and are concerned almost the possibility of passing on a genetic trait to their offspring. This destination type of screening can look at the parents genotype or look at the genotype of the fetus or newborn. This type of screening can also look for a special(prenominal) disorder or can be done as a general tribulation for common disorders as in prenatal testing or more(prenominal) commonly newborn screening. Genetic tests use proficiencys to examine genes or markers snug the genes. Direct test ing for diseases such as Cystic Fibrosis and Sickle cadre Anemia come from an analysis of an individuals specific genes. A technique called linkage analysis, or indirect testing, is utilize when the gene cannot be directly place exactly can be located within a specific region of a chromosome. This testing requires additional DNA from an affected family portion for comparison. Because each persons DNA is unique (except for identical twins), genetic tests also can be utilize for individual identification (DNA fingerprinting). This technique is often used in forensic work, where samples from a crime purview such as blood or semen could be used as incriminating or acquitting evidence. Genetic testing is a knotty process, and the results depend both on reliable laboratory procedures and an accurate deracination of results. Tests also vary in sensitivity, that is, their ability to learn mutations or to detect all patients who have or will develop the disease. Interpretation of test results are often complex even for trained physicians and other wellness care 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. Three common tests include those for cystic fibrosis, Tay-Sachs disease, and sickle-cell trait but more tests are coming on the market at a very high rate. Norman Frost of the University of Wisconsin Madison Medical condition says, Potential new genetic tests roll off the conveyor smasher of the human genome project almost once a week (2).