Divergence - mechanism of gastrulation, Biology

DIVERGENCE -

  1. In it blastomeres move in different directions i.e. inside the blastocoel the blastomeres move in different directions.
  2. The blastomeres which move inside i.e. the involuted blastomere are called chordamesoderm.
  3. Chorda-mesoderm forms complete Notochord. Mesoderm is a part of endoderm.
  4. Remaining endoderm forms from megameres.
  5. At the end of gatrulation, blastopore contracts and the megameres close this pore.
  6. These megameres look like a plug and so this is termed as Yolk plug stage. It is formed at the end of gastrulation.

2196_divergence.png

Posted Date: 10/4/2012 5:35:59 AM | Location : United States







Related Discussions:- Divergence - mechanism of gastrulation, Assignment Help, Ask Question on Divergence - mechanism of gastrulation, Get Answer, Expert's Help, Divergence - mechanism of gastrulation Discussions

Write discussion on Divergence - mechanism of gastrulation
Your posts are moderated
Related Questions
Osmoregulation in Non-Chordate Metazoans Previously you have studied that in protozoans, particularly fresh water protozoans; contractile vacuoles play a significant role in t

Health And Economic Development - Linkage And Impact It is apparent that the relationship between health and development is a two wayprocess. While healthy people in a country

Individuals with tyrosinenmia have food patterns very similar to the one for PKU discussed above. PKU is more common than tyrosinemia. Foods that are high in tyrosine and phenylala

Define about the Pyranose and Furanose ring structure? Monosaccharides forming a five-sided ring or a five membered ring (4 C and 1 O), like ribose, are called furanoses. Those


Extra-ocular muscles There are, as you know, six extra-ocular muscles. Out of these, four are recti(straight) and two are oblique. They control the position and movement of th

What is hydrogen bonds? Hydrogen Bonds : Hydrogen bonds form between polar molecules, such as water. Each water molecule has two positively charged hydrogen poles, and one ne

1. In the human, normal pigmentation ( A ) is dominant to albinism ( a ). What results would be expected from the following matings, both genotypically and phenotypically? AA x

Gum Karaya Gum karaya (sterculia gum) is the dried gummy exudate from Sterculia urens Roxburgh and other species of Sterculia (Family: Sterculiaceae) or from Cochlosperm

what is binomial nomenclature? What are the importance of it?