Phenomena and Processes

Meiotic Prophase I

The prophase of the first division of MEIOSIS (in which homologous CHROMOSOME SEGREGATION occurs). It is divided into five stages: leptonema, zygonema, PACHYNEMA, diplonema, and diakinesis.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The prophase of the first division of MEIOSIS (in which homologous CHROMOSOME SEGREGATION occurs). It is divided into five stages: leptonema, zygonema, PACHYNEMA, diplonema, and diakinesis.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

18 entry terms
  • Meiotic Prophase 1
  • Prophase 1
  • Prophase I
  • Prophase I, Meiotic
  • Diakinesis
  • Diplonema
  • Diplotene Stage
  • Leptotene Stage
  • Zygonema
  • Zygotene Stage
  • Diakineses
  • Diplonemas
  • Stage, Diplotene
  • Stage, Leptotene
  • Stage, Zygotene
  • Stages, Zygotene
  • Zygonemas
  • Zygotene Stages

MeSH Record

Aspects Covered

5 allowable subheadings

Indexed with the subheadings drug effects, genetics, immunology, physiology, radiation effects.

MeSH Record

History Note

2005

MeSH Record

Previous Indexing

  • Meiosis (1968-2004)
  • Prophase (1978-2004)

MeSH Hierarchy

Tree Numbers

  1. G04.144w.220w.220.687w.444
  2. G05.113w.220.687w.500

AMA Style

References

  1. National Library of Medicine. Meiotic Prophase I. Medical Subject Headings (MeSH). 2026. Unique ID D049469. http://id.nlm.nih.gov/mesh/2026/D049469
  2. Meiotic Prophase I. In: Wikidata. https://www.wikidata.org/wiki/Q22299182