Advertisement

Glossary

Search for glossary terms (regular expression allowed)
Begin with Contains Exact termSounds like
Term Definition
X-linked recessive trait

A genetic trait that is apparent when all copies of the X-chromosome possess the gene; in men, this occurs when they inherit the trait from their mother, while women must inherit the trait from both parents. For this reason, X-linked recessive traits are almost always apparent only in men, while women are more commonly carriers of the trait.

X-linked trait

A genetic trait found on the X chromosome; women have two copies of this chromosome, while men have only one.

XXY disease

Also known as: XXY disease

A rare genetic condition in boys and men caused by an extra X chromosome. (Males normally have one X and one Y chromosome.) The presence of the extra X chromosome may or may not produce obvious signs and symptoms (usually in teens and adults), such as low testosterone, small penis and testicles, enlarged breasts, tall stature and/or behavioral, learning, speech or language disabilities. Most of these individuals are infertile.

Dictionary:

Our Sponsors