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Glossary Term
Glossary Term Sex Chromosome
Definition Either of two chromosomes that are sexually dimorphic in species with chromosomal (as opposed to genic) sex determination. In mammals, males are the heterogametic sex, having an X chromosome and a Y chromosome, while females are the homogametic sex, having two X chromosomes.
Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Tumor Biology (MTB), Gene Ontology (GO), MouseCyc
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Send questions and comments to User Support. 		last database update
01/20/2015
MGI 5.21 		The Jackson Laboratory