Induction in metamorphosis, Biology

Assignment Help:

Induction in Metamorphosis

Some of the morphogenetic changes throughout metamorphosis are found fo be quite independent of hormone action. For instance, generally during metamorphosis, the skin of the tail goes through degeneration under hormonal effect. It is observed that when the skin alone is removed from tail and transplanted onto the tail of other metamorphosing larva, it does not regress despite the existence of the hormone. But if the skin is grafted to the trunk with its underlying muscle in a developing tadpole, then it regresses.

So the hormone affects only the muscle directly that induces regression or progression of the skin depending upon the induction it receives from its underlying muscle of tail or trunk respectively. Likely tympanum is another instance of the induction process and is independent of direct hormone, action as its formation is induced by the tympanic cartilage.


Related Discussions:- Induction in metamorphosis

Breathing and airway - initiation of cpr, Airway: Place the patient  s...

Airway: Place the patient  supine on a firm  surface with his  head at level  or  slightly lower than the level of heart. Immediately, clear the  airway and start  rescue brea

Importance of forests - fuel wood, Importance of Forests - Fuel Wood T...

Importance of Forests - Fuel Wood The forests are renewable resources which provide us a wide variety of commodities. For man, forests have been a source of recreation and the

Useful products that can be obtained by genetic engineering, Name three use...

Name three useful products that can be obtained by genetic engineering. Useful products of genetic engineering are:- A) chymosin, B) Alpha-anti-trypsin, C) hepatitis

What is the function of the left ventricle, What is the function of the lef...

What is the function of the left ventricle? Where does the blood go after leaving the left ventricle? The function of the left ventricle is to get blood from the left atrium an

Condom, what is condom???

what is condom???

Signs and symptoms diabetic ketoacidosis, Q. Signs and Symptoms diabetic ke...

Q. Signs and Symptoms diabetic ketoacidosis? The following are the signs and symptoms of DKA: 1) Increased heart rate (tachycardia) 2) Low blood pressure 3) Dehydratio

What is bioremediation, Question 1 Write a short note on the following ...

Question 1 Write a short note on the following Impactors Land fills Bio stimulation Green house effects Question 2 What is bioremediation? Give an account o

What is the diameter of this nucleus, By bombarding atoms in a thin metal s...

By bombarding atoms in a thin metal sheet with energetic particles, Rutherford found that most of the mass of an atom is concentrated inside a very small volume. What is the diamet

Chemical composition of chromatin, CHEMICA L COMPOSITION OF CHROMATIN ...

CHEMICA L COMPOSITION OF CHROMATIN Chromatin threads composed of DNA (31 %), RNA (2-5%) and proteins (Histon-36%, Non histon 28%). Histone and protamines are basic prote

What are abiotic factors?, What are abiotic factors? The Abiotic factor...

What are abiotic factors? The Abiotic factors are the nonliving elements that constitute a given environment, like light, temperature, water, minerals, gases, atmospheric press

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