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

Explain metabolic changes during infection, Explain Metabolic changes durin...

Explain Metabolic changes during infection With  the rise  in body  temperature above normal (98.4 0 F or 37°C) due  to infection several metabolic changes occur  in  the body

How many chambers does the fish heart have, Q. How many chambers does the f...

Q. How many chambers does the fish heart have? The fish heart is a tube made of two consecutive chambers such as one ventricle and one atrium.

Why are euglenas involved in polemics, Why are euglenas involved in polemic...

Why are euglenas involved in polemics related to their taxonomic classification? Euglenas are included in taxonomic polemics because they tend to be classified sometimes as pro

What is the function other than protection of the ribs, What is the functio...

What is the function, other than protection, of the ribs? The ribs help to alter the volume of the thorax during breathing movements.

Source of nutrients and energy of microorganisms, Q. Source of nutrients an...

Q. Source of nutrients and energy of Microorganisms? Microorganisms use foods as a source of nutrients and energy. Each kind of microorganism has a definite range of food requi

Mention causes of implant failure, Mention causes of implant failure due to...

Mention causes of implant failure due to improper implant selection. Implant selection errors : a) Improper implant type in improper bone type. b) Improper length, width

Define the term- life on earth, The article entitled "Life on Earth" is try...

The article entitled "Life on Earth" is trying to make the point that RNA likely included before DNA. Forthis article which of the following is false? A. Chains of RNA nucleoti

What is lymphatic system in human biology, What is Lymphatic System in huma...

What is Lymphatic System in human biology? The lymphatic system maintains fluid balance and serves in protecting the body from disease. The primary organs of the lymphatic syst

Explain the determination of hydrolysis, Explain the Determination of Hydro...

Explain the Determination of Hydrolysis Hydrolysis of calcium pantothenate in acidic medium produces  α,γ-dihydroxy-β,β-dimethylbutyrolactone, which reacts with hydroxylamine i

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