Genetic tests
are analyzes of DNA, RNA, chromosomes, proteins,
metabolites, or other biological material, which are generally performed for
clinical purposes.
Genetic testing
is a type of medical test that identifies changes in chromosomes, genes, or
proteins.
They can be
done in adult individuals, in the fetus and in organic remains.
The results of
a genetic test can confirm or rule out the suspicion of a genetic disease or
help determine the likelihood of developing or transmitting a person's genetic
disorder.
More than 1,000
genetic tests are currently in use, and more are being developed.
Several methods
can be used for genetic testing:
Molecular
genetic testing (or genetic testing) study of individual genes or short
stretches of DNA to identify variations or mutations that lead to a genetic
disorder.
Chromosomal
genetic tests, which look at entire chromosomes or large lengths of DNA to see
if there are large genetic changes, such as an extra copy of a chromosome, that
cause genetic disease.
Biochemical
genetic tests, which study the amount or level of protein activity;
Abnormalities in either can indicate DNA changes that lead to a genetic
disorder.
Undergoing a
genetic test is a voluntary act . Since testing
involves both benefits and limitations and risks, the decision about whether to
do it is personal and complex. A geneticist or genetic counselor can help
provide information about the pros and cons of the test and analyze the social
and emotional aspects of the tests.