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Prophases of the Heterotype Division in the Male Axolotl

  1. Nucleus of spermogonium or young spermocyte.
  2. Early leptotene.
  3. Transition to synaptene.
  4. Synaptene with the double filaments converging toward the centrosome.
  5. Contraction figure.
  6. Pachytene.
  7. Pachytene.
  8. Early diplotene.
  9. Later diplotene.
  10. The heterotypic double chromosomes; the nuclear membrane is disappearing.


Links: axolotl | mitosis

Reference

Courtesy, Jenkinson: "Vertebrate Embryology," Oxford, The Clarendon Press.


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Pages where the terms "Historic" (textbooks, papers, people, recommendations) appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms, interpretations and recommendations may not reflect our current scientific understanding.     (More? Embryology History | Historic Embryology Papers)
Frog Development (1951): 1 Introduction | 2 Rana pipiens | 3 Reproductive System | 4 Fertilization | 5 Cleavage | 6 Blastulation | 7 Gastrulation | 8 Neurulation | 9 Early Embryo Changes | 10 Later Embryo or Larva | 11 Ectodermal Derivatives | 12 Endodermal Derivatives | 13 Mesodermal Derivatives | 14 Summary of Organ Appearance | 15 Glossary | 16 Bibliography | Figures

Reference

Rugh R. Book - The Frog Its Reproduction and Development. (1951) The Blakiston Company.


Cite this page: Hill, M.A. (2024, May 27) Embryology Rugh 015.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Rugh_015.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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