Theory of embryology - organizer theory, Biology

ORGANIZER THEORY -

  1. It was propounded by spemann (1901).
  2. He was given Nobel prize of 1935 for this wrok.
  3. He studied the embryonic development of frog, newt & other amphibians.
  4. He explained that a part of embryo secretes specific chemical which controls the differentiation of other tissues. The secretory tissues is called as inducer of organiser & the process is called as Induction.
  5. Spemann studied frog's gastrula & explained that the dorsal lip or roof of archenteron acts as primary organiser.
  6. Graham & Wareing supported the theory of organiser & stated that the induction is an intercellular process which controls morphogenesis & differentiation of embryo.
Posted Date: 10/3/2012 7:03:37 AM | Location : United States







Related Discussions:- Theory of embryology - organizer theory, Assignment Help, Ask Question on Theory of embryology - organizer theory, Get Answer, Expert's Help, Theory of embryology - organizer theory Discussions

Write discussion on Theory of embryology - organizer theory
Your posts are moderated
Related Questions
Hybridoma is the clone of plasmacytoma cells which secrete a monoclonal antibody; commonly produced by the fusion of peripheral or splenic plasma cells taken from the immunized mo

Q. How does the embryo turn from gastrula into neurula? How is the neural tube formed? What is the embryonic origin of the nervous system in vertebrates? The neurula stage is c

Adult Botulism The symptoms of botulism may develop between 12 and 72 hours after the ingestion of toxin containing foods. Symptoms include nausea, vomiting, fatigue, dizzine

Oxidation of glyceraldehyde-3-phosphate Oxidation of glyceraldehyde-3-phosphate : The  conversion  of glceraldehyde- 3-phosphate to  1,3-bisphosphoglycerate  is catalysed  by

Pathology: This concerned with the identification of different diseases, causative organs, their prevention and control methods. Pathology is a kind of study or diagnosis of diseas

significance of gastrulation

Q. From the lumen to the external surface what are the tissues that form the digestive tube wall? From the internal surface to the external surface, the digestive tube wall is

Preparation on the Morning of Surgery Morning care  Hygiene Bowel and bladder emptying.  Oral hygiene, remove dentures if any, no lipstick.  Comb and make th

How to reduce the stresses on the implant i) There is need to reduce the stresses on the implant - ii) Frequent recall for maintenance or hygiene appointments. iii) Gingi

FUNCTIONS OF SKIN - Skin performs various diverse functions, that is why it is called "jack of all trades". 1 .      Protection - The skin protects the internal soft or