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Sex Chromosomes

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 and Stansfield, A Dictionary of Genetics, 4th ed)

Year introduced: 1968

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Tree Number(s): A11.284.187.865, G05.360.162.865

MeSH Unique ID: D012730

Entry Terms:

  • Chromosome, Sex
  • Chromosomes, Sex
  • Sex Chromosome
  • Gonosomes
  • Gonosome

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