Polarity in regeneration, Biology

Assignment Help:

Polarity in Regeneration

A distinct polarity or gradient exists in planarians (and in other animals). The meaning of this is that in any piece or segment of the body; its anterior end (head end) represents one pole and the posterior end (tail end) represents another pole. Regeneration is generally correlated with this polarity. In any excised piece the cut surface towards the head end generates a new head and the cut surface towards the hind end produces a tail. In the remaining non-chordate phyla (that is Aschelminthes, Arthropoda and Molluscs) regeneration of missing parts is minimal, and asexual reproduction including regeneration is almost non-existent.


Related Discussions:- Polarity in regeneration

Excretory system, What are the excretory organ in protozoa,coelenterates, i...

What are the excretory organ in protozoa,coelenterates, insects,spider,and arthropods

Sea, sea divisions

sea divisions

Anatomy, what are the names of twelve cranial nerves

what are the names of twelve cranial nerves

Tuberculosis, T ub e rc u l o si s Tuberculosis in animal is ca...

T ub e rc u l o si s Tuberculosis in animal is caused by Mycobacterium bovis , M. tuberculosis and M. avium and among these the most important causal agent is M.

How the rhizopus reproduce?, How the Rhizopus reproduce? Rhizopus usual...

How the Rhizopus reproduce? Rhizopus usually reproduce asexually, but under unfavourable conditions, sexual reproduction (isogamous) occur resulting in formation of zygospores

What is the significance of protein for the cell, Q. How does the sodium-po...

Q. How does the sodium-potassium pump present in the cell membrane work? What is the significance of this protein for the cell? The sodium-potassium pump is the transport prote

Malpighian tubules of insects, Normal 0 false false false ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

What is kingdom protista in diversity of life, What is Kingdom Protista in ...

What is Kingdom Protista in diversity of life? Members of Kingdom Protista are grouped separately from the other eukaryotic kingdoms because most of the organisms have a unicel

Animal pharming, A n i m a l pharming Using animals...

A n i m a l pharming Using animals as bioreactors is also cost-effective and advantageous because animals naturally carry the cellular mechanisms needed to

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