Comparison with amphibian gastrulation, Biology

Assignment Help:

Comparison with Amphibian Gastrulation

On comparison of chick gastrulation along with amphibian gastrulation you will find many similarities along with significant differences. Primitive streak is analogous to the blastopore although there is no actual pore. The Hensen's Node presents the dorsal lip and the folds on the lateral sides of primitive groove present the lateral lips. However, there is no ventral lip. As in amphibians, the prechordal endoderm and chorda mesoderm of chick migrate inward by the Hensen's Node (dorsal lip) and the remaining endoderm and mesoderm do so by involution over the lateral folds of the streak (lateral lips). The topographic locations of the presumptive ectodermal, chordarnesodermal; mesodermal and endodermal areas relative to each other in the epiblast are nearly similar as on the surface of amphibian blastula. As in amphibians, the involuting mesodermal and endodermal cells change shape to become bottle cells in the gastrulating chick embryos as well.


Related Discussions:- Comparison with amphibian gastrulation

Caryopsis - development of fruit, Caryopsis - Development of Fruit In ...

Caryopsis - Development of Fruit In cereals each carpel has one ovule and therefore the mature fruit has, just one seed. During maturation, very little or no cell divisions ar

Define vitamin k-dependent carboxylation, Define Vitamin K-dependent carbox...

Define Vitamin K-dependent carboxylation? Vitamin K acts as a cofactor in the synthesis of g-carboxyglutamic acid (Gla) from glutamic acid residues required for the normal coa

Types of earthquake, Earthquakes Can Be classified into different categorie...

Earthquakes Can Be classified into different categories on the basis of region where it  occurs and the geological make-up of that region as : (i)     Tectonic earthquake: most

Determine the type of bandage, Determine the type of bandage The most com...

Determine the type of bandage The most common type of bandage is the gauze bandage, a simple woven strip of material which comes in different widths and lengths.

Anomalies related to oesophagus and stomach, Anomalies Related to Oesophagu...

Anomalies Related to Oesophagus and Stomach   Let us discuss briefly the anomalies of oesophagus and stomach. These are summarised as  follows: Associated Problems  1)  P

Can you explain about cardiomyopathies, Q. Can you explain about Cardiomyop...

Q. Can you explain about Cardiomyopathies? Cardiomyopathy is a primary disorder of heart muscle that may cause cardiac dysfunction and is not related to any obvious disease pr

Gastric mucosa protected from the acid ph of the stomach, Q. How is the gas...

Q. How is the gastric mucosa protected from the acid pH of the stomach? The gastric epithelium is mucus secretory that is it produces mucus, the mucus covers the stomach wall p

Define systematic botany - taxonomy, Define Systematic Botany - Taxonomy? ...

Define Systematic Botany - Taxonomy? We will now learn something mare about systematic botany. The early recognition of harmful and useful plants was the beginning of systemati

Attempted suicide - psychiatric emergencies, Attempted Suicide: Suicid...

Attempted Suicide: Suicide and homicide represent major source of morbidity and mortality in psychiatric practice.  Suicide means killing of  oneself.  An attempted suicide is

How to make a 200 ml single solution, You have a 1M KCl stock solution and ...

You have a 1M KCl stock solution and a 85 mg/ml sulphuric acid stock solution. How will you make a 200 ml single solution containing 20mM KCl and 18 mg/ml sulphuric acid?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd