What is the definition of genetic testing?

Answer 1

It's testing for different genetic diseases. Every family history is different, so you need to talk to both sides of your family and take notes.

Afterward, you make an appointment with a genetics counselor, who will put your chart together, and you'll have a blood test. The results can take 2 to 3 weeks to come back.

Answer 2

There are many types of testing but typically testing of DNA required a biological sample such as hair, blood, or other biological fluid. This substance is then broken down by an special acid and then is processed further so the individual genetic pieces are broken down. The testers will then usually look at only a small portion of the genetic material to get a "fingerprint" and match that up against the same portion of genetic code from another sample. This can be used to match paternity or for criminal prosecution, etc. DNA testing if done correctly is very much effective and can discriminate a sample to odds of 1 in 6 billion. Which pretty much is a certainty for criminal court. I know it is really simplified, but it is a start. The whole process is more involved.

Answer 3

Gene testing involves examining a person's DNA - taken from cells in a sample of blood or, occasionally, from other body fluids or tissues - for some anomaly that flags a disease or disorder. The DNA change can be relatively large: a missing or added piece of a chromosome - even an entire chromosome - that is visible under a microscope. Or it can be extremely small, as little as one extra, missing, or altered chemical base. Genes can be overexpressed (too many copies), inactivated, or lost altogether. Sometimes, pieces of chromosomes become switched, or transposed, so that a gene ends up in a location where it is permanently and inappropriately turned on or off.

In addition to studying chromosomes or genes, genetic testing in a broader sense includes biochemical tests for the presence or absence of key proteins that signal aberrant genes.

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