Theory of embryology - regulative theory, Biology

Assignment Help:

REGULATIVE THEORY

  1. It was propounded by Hens Driesch.
  2. He performed experiments on the eggs of sea urchin similar to the experiments performed by Roux.
  3. He observed that when two cells formed after first cleavage are separated, both of the cells form two different embryo/larva which are complete but smaller.
  4. On this basis he explained that the egg has homogenous substances which get distributed in daughter cells equally.
  5. Schmidt, Spemann & Endres supported the findings of the Driesch.

Related Discussions:- Theory of embryology - regulative theory

Explain the basic function and use of glycolysis, Q. What is the glycolysis...

Q. What is the glycolysis? And what are the products of this process? Glycolysis, the first stage of the aerobic cell respiration is a process in which glucose is degraded brok

Define factorial method to calculate nitrogen requirements, Define Factoria...

Define Factorial method to Calculate Nitrogen Requirements? The nitrogen requirements have been calculated by a factorial method suggested by different expert groups, described

Biological conservation, what are the significance of zoological parks in c...

what are the significance of zoological parks in conversation

Why a species has a diploid chromosome number of 56, A species has a diploi...

A species has a diploid chromosome number of 56. Is it true or false that of the 28 chromosomes in an ovum, 14 are always paternal? Ignore the effects of crossing over. Justify you

Define the proteins requirement to avoid underweight problem, Define the Pr...

Define the Proteins requirement to avoid underweight problem? Proteins are required for tissue building, as well as, to take care of the daily wear and tear. Under weight indiv

Explain the absence of passive fit of the prosthesis, Absence of Passive Fi...

Absence of Passive Fit of the Prosthesis A passive fit of the prosthesis reduces long term stresses in the superstructure, implant components and the bone adjacent to the impla

Ribosomes in eukaryotic, Q. How dissimilar are the location of ribosomes in...

Q. How dissimilar are the location of ribosomes in eukaryotic and in prokaryotic cells? In eukaryotic cells they can also be found free in cytoplasm and mainly adhered to the e

Do plants present only sexual reproduction, Q. Do plants present only sexua...

Q. Do plants present only sexual reproduction? There are asexual forms of reproduction in plants few naturally detached pieces of root, leaves or limbs develop into another com

Risk analysis- definiton of food, Risk analysis- Definiton of Food Food...

Risk analysis- Definiton of Food Food  :  Any  substance,  whether processed,  semi- processed  or  raw  which  is intended for human consumption, containing drinks, chewing gu

Explain rifaximin, Explain Rifaximin Rifaximin (Xifaxan - Salix), a non...

Explain Rifaximin Rifaximin (Xifaxan - Salix), a non-absorbed oral antibiotic derived from rifampin (Rifadin, and others), has been approved by the FDA for treatment of travele

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