A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q-R | S | T | U | V | W | X | Y-Z

Trisomy

Definition(s)

The presence of a single extra chromosome, yielding a total of three chromosomes of that particular type instead of a pair. Partial trisomy refers to the presence of an extra copy of a segment of a chromosome.: Definition from: GeneReviews from the University of Washington and the National Center for Biotechnology Information


		About Site Map Contact Us
	A service of the U.S. National Library of Medicine®
Home Conditions Genes Chromosomes Handbook Glossary Resources