Source:http://linkedlifedata.com/resource/umls/id/C0036869
MSH: The homologous chromosomes that are dissimilar in the heterogametic sex. There are the X CHROMOSOME, the Y CHROMOSOME, and the W, Z chromosomes (in animals in which the female is the heterogametic sex (the silkworm moth Bombyx mori, for example)). In such cases the W chromosome is the female-determining and the male is ZZ. (From King & Stansfield, A Dictionary of Genetics, 4th ed),CSP: chromosomes that are associated with the determination of gender, in mammals constituting an unequal pair, the X and the Y chromosome.,GO: A chromosome involved in sex determination. [GOC:elh],NCI: The X or Y chromosome in human beings that determines the sex of an individual. Females have two X chromosomes in diploid cells; males have an X and a Y chromosome. The sex chromosomes comprise the 23rd chromosome pair in a human karyotype.