Genetic Testing
Genetic Testing
Genetic testing is when doctors look at a person’s DNA (genetic information) to see if they or their children are likely to have medical problems in the future. Before doctors could test for genes that might give trouble, they had to understand what genes are and how they work. This knowledge was gained starting in the early 1950s, when the nature of the DNA molecule was first understood. By the late 1980s, devices existed that allow doctors to sequence DNA cheaply and quickly enough to make genetic testing possible. The popularity and usefulness of genetic testing grew during the 1990s. Today it is a common procedure.
Genetic testing can be classified into the following categories:
Carrier identification. Some diseases, called genetic diseases, are passed by their parents to their children. In some cases the parents may not have the disease themselves: a person must have two copies of a defective gene (DNA segment) to get the disease, and often a person has one copy. The person with one copy is called a carrier. If both parents have the defective gene, however, then the chances are high that at least some of their children will get two copies and therefore have the disease.
Prenatal diagnosis. This is when DNA taken from a developing fetus is tested, usually to see if there is mental retardation or some other severe birth defect. Parents sometimes choose abortion if the test shows that their developing fetus is likely to be born with severe mental retardation.
Newborn screening. Newborn screening is when newborn babies are tested to see if they have genetic disorders that can be better treated if treatment starts at once. Newborn screening can test for dozens of disorders, many involving the body’s ability to produce certain substances that are vital to life. If caught early, sickness and death can sometimes be prevented.
Late-onset disorders. Genetic tests are also available for diseases that affect people later in life, such as heart disease, colon cancer, certain kinds of breast cancer, and some other cancers. These tests do not prove that a person is going to have a certain disease, but a positive result means that the person is more likely than other people to get that disease.
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Genetic Hair Loss Testing; Hair Loss Treatments NBC Today Show/Florida Today
NBC TODAY SHOW investigates the new genetic test for hair loss. Men and women can now assess their risk for hair loss at an early stage. More info on treatements and diagnostic procedures on South Florida Today (NBC), live in the studio.
Want to know what your genes can tell you about yourself? See what happens when Diane Ako takes a home-kit gene test from California based company 23 & Me.
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How to Safely Tailor Your Food, Medicines, & Cosmetics to Your Genes: A Consumer’s Guide to Genetic Testing Kits from Ancestry to Nourishment
How to Safely Tailor Your Food, Medicines, & Cosmetics to Your Genes: A Consumer’s Guide to Genetic Testing Kits from Ancestry to Nourishment
- ISBN13: 9780595294039
- Condition: NEW
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Here’s how to tailor your drugs, food, and skin-care products to your DNA. This is your consumer’s guide to genetic testing kits. Your DNA, including your ancient ancestry and ethnicity has a lot to do with how your body responds to food, medicine, illness, exercise, and lifestyle, but just how much? And how do you know which DNA kits and gene testing are reliable and recognized? Learning about DNA to understand and improve your health is now interactive and available to the average consum
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Genetic Testing Kits
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Welcome to Genetic Testing Kits. Individual Healthcare is the goal of Genetic Testing Kits, which provides personalized medicine information with genetic testing articles, genetic testing videos, and general conversation about the new biotechnology and personalized medicine. Genetic testing allows for determining genetic predispositions to inherit traits and diseases. Genetic testing kits can also be used to determine a child’s paternity (genetic father) or a person’s ancestry.
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Normally, every person carries two copies of every gene, one inherited from their mother, one inherited from their father. The human genome is believed to contain around 20,000 – 25,000 genes.
Most of the time, testing is used to find changes that are associated with inherited disorders. The results of a genetic test can confirm or rule out a suspected genetic condition or help determine a person’s chance of developing or passing on a genetic disorder. Since genetic testing may open up ethical or psychological problems, genetic testing is often accompanied by genetic counseling.
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