![]() ![]() In some cases, these tests can confirm a diagnosis. The major benefit of genetic marker testing is that it tends to be highly accurate. Different genetic signatures may provide information about the type of cancer a person has, as well as which treatment is most likely to be effective. Oncologists may also perform genetic testing on certain types of cancer tumors. This test looks for genetic markers carried by the virus that causes COVID-19. Rather than sequencing a person’s genome, these tests examine specimens for the presence of embedded genetic signals that strongly correlate with the suspected disease.ĬOVID-19 PCR testing is one such example. Privacy: Using private companies for non-medical genetic testing may compromise a person’s genetic privacy.Īnother type of genetic testing involves looking for genetic markers of infections or diseases.It can be expensive and may not be covered by insurance. Accessibility: Molecular testing is not accessible to everyone.For example, a person may have to decide whether to terminate a pregnancy if they learn that there is a 50% chance their child will carry a fatal disease. Decision-making: Making decisions based on genetic information can be challenging.Tests identifying genetic risk factors do not guarantee that a person will develop a disease and may needlessly cause anxiety. Reliability: The reliability of testing can vary, especially when a person uses home genetic tests.Other uses: Some people pursue molecular home testing to learn about potential ancestry or because they are curious about their genetic inheritance.Testing for various cancer-related genetic variants may guide breast cancer screening. Health decision-making: A person who has a higher risk of certain diseases may make long-term plans based on this knowledge or change their lifestyle to reduce their risk.Preconception assistance : If a person carries the gene for certain harmful or potentially fatal illnesses, this may affect their family planning decisions.This type of testing offers many benefits, including: For example, carriers of certain genes may not respond well to some medications or may be at a higher risk of certain allergic reactions. This is a common type of testing when a person is pregnant or planning to become pregnant.Īnother use of genome sequencing is to help predict a person’s response to certain medications. Genome sequencing can also assess whether a person carries a gene for a disease. Genes are made up of DNA and provide instructions for the cell to make proteins. Genome sequencing involves analyzing the genetic material of a cell - either in whole or in part - to look for specific genes or gene changes. These include: Genome sequencing and testing In general, molecular testing falls into two broad categories with many different subtypes. For example, COVID-19 PCR tests are a type of molecular testing that scientists rapidly developed in response to the COVID-19 pandemic. Molecular testing is evolving rapidly, with an increasing number of tests available. ![]()
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