Problem of potency of blastema cells, Biology

Assignment Help:

Problem of Potency of Blastema Cells

The local cells are accountable for regeneration. Now you could ask which of the blastema cells differentiated into which type of limb tissues? Do differentiated cells like muscles, cartilage etc., lose their specialised properties, proliferate and consequently re-differentiate solely in accordance along with their previous differentiated state that is into muscle, cartilage etc respectively? Or, do the dedifferentiated cells truly turns into pluripotent cells capable of forming a variety of differentiated cells. To serch answer scientists performed an experiment where the skeleton was removed from the limb segment of an adult newt. This was-done by extirpating the bone so that the limb was lastingly without a skeleton. Then the boneless segment was amputated. It was observed that the limb that regenerated also had its skeletal component. This clearly pointed out that skeletal elements can differentiate from a blastema which received no contribution from preexisting skeleton. Thus tissues, in particular skeletal ones, do not require to be formed by cells from their particular tissue counterparts in the stump.

2485_Problem of Potency of Blastema Cells.png

Figure: Stump counterparts not - needed for regeneration of the distal parts of the limb skeleton. a: forelimb skeleton of a newt. b: the humerus is excised and then the limb is amputated through the upper arm. c: regeneration of distal parts, including skeleton, proceeds from the cut surface distally.


Related Discussions:- Problem of potency of blastema cells

What are the causes of endodontic pain, What are the causes of endodontic p...

What are the causes of endodontic pain? Lesions in retreatment cases called post endodontic diseases. Reasons of Endo retreatment; = reasons of failure: - Signs or symptoms of

How is urea formed in the human body, Q. How is urea formed in the human bo...

Q. How is urea formed in the human body? Urea is a product of the degradation of amino acids, in the process amino acids lose their amine group which is then transformed into

Clinical manifestations of bronchial asthma, Clinical Manifestations C...

Clinical Manifestations Can be chronic to acute, mild to severe. Acute attack often occur at night. During an acute attack, audible inspiratory and expiratory wheezing. Patie

Regulation of fatty acid, The main point of control of β-oxidation is the a...

The main point of control of β-oxidation is the availability of fatty acids.  The major  source   of  free  fatty   acids   in  the  blood   is  from   the  breakdown   of triacylg

Describe the rationale behind sterilization, Q. Describe the rationale behi...

Q. Describe the rationale behind sterilization? Rationale for sterilization: Source of potential infection that exists in dental office include hands, saliva, nasal secretion,

Show vascular system which performs exchange of gases, Q. What is the part ...

Q. What is the part of the vascular system that performs exchange of gases and other substances with the tissues? Simply capillaries perform exchange of gases and other substan

Define the activation of an agonist during movement, Explain the relationsh...

Explain the relationship between an agonist muscle and its antagonist as it relates to positional control, functional movement and neuromuscular activation. For example, how the th

Biotechnology in conservation of animal biodiversity, Cryopreseravtion of g...

Cryopreseravtion of gametes , embryos or DNA segments can be quite an effective and safe approach for breeds or strains whose populations are too small to be conserved by any other

Procedure for spore staining in a given bacterial culture, Explain Procedur...

Explain Procedure for Spore Staining in a Given Bacterial Culture Carry out the exercise following the steps enumerated herewith 1. Take a clean, non-greasy slide. Prepare b

Hiv, The chances of transmission in female is mor than males

The chances of transmission in female is mor than males

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