Anatomy

Y Chromosome

The male sex chromosome, being the differential sex chromosome carried by half the male gametes and none of the female gametes in humans and in some other male-heterogametic species in which the homologue of the X chromosome has been retained.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The male sex chromosome, being the differential sex chromosome carried by half the male gametes and none of the female gametes in humans and in some other male-heterogametic species in which the homologue of the X chromosome has been retained.

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Classification

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Synonyms

3 entry terms
  • Chromosome, Y
  • Chromosomes, Y
  • Y Chromosomes

MeSH Record

Aspects Covered

14 allowable subheadings

Indexed with the subheadings chemistry, classification, drug effects, enzymology, genetics, immunology, metabolism, microbiology, parasitology, pathology, physiology, radiation effects, ultrastructure, virology.

MeSH Record

Indexing Annotation

abnormalities; coordinate IM with SEX CHROMOSOME ABERRATIONS (IM) or specific disease (IM) + SEX CHROMOSOME ABERRATIONS (NIM); Y CHROMOSOME, HUMAN is also available

MeSH Record

History Note

84(78); was see under SEX CHROMOSOMES 1968-83

MeSH Record

Previous Indexing

  • Chromosomes (1966-1967)
  • Karyotyping (1967)
  • Sex Chromosomes (1968-1977)

MeSH Hierarchy

Tree Numbers

  1. A11w.284w.187w.865w.983w
  2. G05.360w.162w.865w.983w

MeSH Record

NLM Classification

QU 470

AMA Style

References

  1. National Library of Medicine. Y Chromosome. Medical Subject Headings (MeSH). 2026. Unique ID D014998. http://id.nlm.nih.gov/mesh/2026/D014998
  2. Y Chromosome. In: Wikipedia. https://en.wikipedia.org/wiki/Y_chromosome
  3. Y Chromosome. In: Wikidata. https://www.wikidata.org/wiki/Q202771