edugeneedugene2013
All
  • Institution/s: Universidad de Valladolid
  • Project: Diccionario Terminológico de Genética (Eurogene)
  • Identification number: 20
  • Subdomains: Studies of chromatin, Studies of DNA, Studies of RNA, Techniques
  • Author/s: Marta VALDENEBRO ARENAS, Patricia ROJO DE DOMINGO, Regina CAVA GARCÍA, Rubén ORTIZ PAMPLIN
  • Creation / modification date: 01-03-2014
  • Term: prophase
  • Gramatical category: s
  • Definition: 2: the initial stage of the first division of meiosis in which the chromosomes become visible, homologous pairs of chromosomes undergo synapsis and crossing-over, chiasmata appear, chromosomes condense with homologues visible as tetrads, and the nuclear membrane and nucleolus disappear and which is divided into the five consecutive stages leptotene, zygotene, pachytene, diplotene, and diakinesis.
  • Context: Meiosis takes place in two steps, each of which has a prophase, metaphase, anaphase and telophase stage as mitosis.
  • Expression: Meiotic prophase
  • Weighting mark: nor
  • Sources:
    • Term: OÑATE OCAÑA, Leonor (2008). Biología II. México D.F.: Cengage Learning Editores.
    • Definition: OÑATE OCAÑA, Leonor (2008). Biología II. México D.F.: Cengage Learning Editores.
    • Context: LACADENA, Juan Ramón (1996). Citogenética. Madrid: Editorial Complutense, p. 153.
  • Images:
    • prophase
      http://celular-chuksot.blogspot.com.es/2007/06/ertretertreter.html
See this term in