Glossary

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  • Adenine

    One of the four DNA bases, abbreviated as A. See base.
  • Affected

    Describes that a person has a disorder or shows symptoms of a disorder.
  • Allele

    One of two or more forms of a gene (also called genotype), at a specific location in the genome.
  • Amino Acid

    A molecule made by instructions contained in DNA. Amino acid molecules are linked together to form a protein. See protein.
  • Ancestry

    Refers to people from the past to whom you are related. Results from genetic ancestry testing may tell you where your ancestors came from and how you are related to other people.
  • Anesthetics

    Substances that cause people to not feel pain. Not all anesthetics make a person unconscious.
  • Anticoagulant

    A substance that slows down or prevents blood from forming clots. See blood thinner.
  • Autosomal Dominant

    Refers to disorders caused by changes (“mutations”) in genes located on one of the 22 pairs of autosomes. Inheriting one gene copy is enough for a person to be affected and thus to show signs of the disorder. The change can be new (“sporadic”) in the affected individual, or inherited from an affected parent. Autosomal dominant disorders affect males and females equally. Compare this term to recessive.
  • Autosomal Recessive

    Refers to disorders caused by changes (“mutations”) in genes located on one of the 22 pairs of autosomes. A person must inherit two changed copies of a gene be affected (i.e., one from each parent) and to show signs of the disorder. Autosomal recessive disorders affect males and females equally. Compare this term to dominant.
  • Autosome

    There are two types of chromosomes: autosomes and sex chromosomes. Humans typically have 22 pairs of autosomes. Autosomes do not determine if a person is male or female.

My46 is an innovative web-based tool that enables individuals to manage their own genetic testing results.

Your genome is your entire genetic code or all of the DNA in a cell.

What My46 Means

Most human cells have 46 chromosomes that provide the genetic instructions for a body to live, grow, and develop.

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