Regeneration - development biology, Biology

Assignment Help:

Regeneration - Development Biology

Regeneration has, intrigued scientists for several generations and has resulting in voluminous literature on the subject beginning from the eighteenth century. T. H. Morgan 1901 has been primarily accountable for formulating the principles which form the basis of the recent studies of regeneration. The main problems of regeneration identified by Morgan are being investigated even to this day. These include the origin and developmental potential of cells that are accountable for the production of the regenerate, the role of the adjacent tissues in ascertaining the structure of the regenerated limb and the reasons for the enormous variation in the regenerative capabilities of various animals. What does regeneration mean in biological terms? Regeneration is a fascinating phenomenon. It includes continuity of the developmental processes or reawaking of the process of morphogenesis and differentiation in post-embryonic life in an already made and functional organism.

Regeneration takes place at various level of organization. At the sub-cellular and molecular level it is manifested in the continuous synthesis to replenish used up substances in the cells. At the sub-cellular and tissue levels it includes replacement of worn out cells, repair of damaged tissues and healing of wounds. At these levels the ability to again generate is a universal characteristic of all animals without which life of any individual would be impossible. At the organismic level regeneration contains de novo (afresh) development to restore the lost part of an organ or the reconstitution of the complete body from the residual pan of the organ concerned. This includes retracing many of the complex steps of the original ontogenetic development in a functional body within quite different physiological and environmental conditions. The capacity for this sort of regeneration is referred to as reparative or restitutive regeneration and is not evenly distributed in the animal kingdom. A few have great powers to restore lost parts, or even to form a whole body from a small piece. Others have variously restricted and limited abilities of such as regeneration, and still others have no power of reparative regeneration at all. The reasons for such type of inequality of regenerative power among animals are not clear.

In many groups, the animals show the phenomenon of autonomy, by which they themselves cast off or lose one or much more parts of the body when disturbed or threatened by an enemy or a predator. The autotomized (self-amputated) parts are consequently regenerated. Different animals employ varied method for the regeneration of lost parts. The study and investigation of the phenomena of regeneration are of great help in the efforts to understand the basic procedures and mechanisms of development as such.


Related Discussions:- Regeneration - development biology

What happens when the ovum is fertilized, What happens when the ovum is fer...

What happens when the ovum is fertilized? If the ovum is fertilized, there is no breakdown of endometrium and no menstrual flow. The fertilized ovum travels through uterine tub

Explain the process of canning, Explain the Process of Canning? The bas...

Explain the Process of Canning? The basic principles of canning have not changed dramatically since Nicholas Appert and Peter Durand developed the process. Heat sufficient to d

What is binary fission in cell reproduction, What is Binary Fission in cell...

What is Binary Fission in cell reproduction? Cell division takes place in prokaryotic cells by binary fission, also called prokaryotic fission. In prokaryotes, DNA is contained

What is retrograde peri-implantitis, Retrograde Peri-Implantitis It has...

Retrograde Peri-Implantitis It has been described by Misch as implant failure probably due to bone microfractures caused by premature implant loading or overloading, other form

Explain the senses taste and smell, Explain the senses taste and smell ? ...

Explain the senses taste and smell ? The pigmented cone cells of the retina transmit information to bipolar nerve cells, then to ganglion cells, and on to the optic nerve and t

Coelomoducts in polyplacophora, Coelomoducts in Polyplacophora In Poly...

Coelomoducts in Polyplacophora In Polyplacophora the coelomoducts divide in the region of coelomostome and the gonadal cavities become closed off from pericardial coelom. The

Describe the formation of egg cells from germ cells, Q. Indicating the name...

Q. Indicating the name and respective ploidy of each involved cell how can the formation of egg cells from germ cells be described? The formation of egg cells begins with a ger

What is mutualism, What is mutualism? Mutualism is the ecological inte...

What is mutualism? Mutualism is the ecological interaction in which both participants advantage and that is obligatory for their survival. Mutualism is a harmonious (positive)

Pathophysiology of myocarditis, Pathophysiology Infective endocarditis...

Pathophysiology Infective endocarditis occurs when turbulence within the heart allows causative organism to infect previously damaged valves or other endothelial surfaces.

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