Theory of embryology - regulative theory, Biology

Assignment Help:

REGULATIVE THEORY

It was propounded by Hens Driesch.
He performed experiments on the eggs of sea urchin similar to the experiments performed by Roux.
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.
On this basis he explained that the egg has homogenous substances which get distributed in daughter cells equally.
Schmidt, Spemann & Endres supported the findings of the Driesch.

Related Discussions:- Theory of embryology - regulative theory

Nitrate uptake, Nitrate Uptake Nitrate must enter the cells before und...

Nitrate Uptake Nitrate must enter the cells before undergoing assimilatory reduction by the joint action of nitrate reductase and nitrite reductase. Cells accumulate NO - 3

How many alleles of genes that condition x-linked traits do, How many allel...

How many alleles of genes that condition X-linked traits do female and male individuals respectively present? For every correspondent gene to an X- linked trait women present a

Explain about the component of metalloenzymes, Explain about the Component ...

Explain about the Component of Metalloenzymes? Zinc is unique among the trace elements in that it is a part of enzymes for all six Enzyme Commission classes. As a component of

Define potential health benefits from resistant starch, Define Potential He...

Define Potential Health benefits from resistant starch? Like dietary fibre, RS can also play a potential role in helping to maintain or improve health of an individual. As you

Explain prophylaxis - fungal infection, Prophylaxis High-risk neutrope...

Prophylaxis High-risk neutropenic patients, such as those undergoing allogeneic and certain autologous stem cell transplants, and those with hematologic malignancy who are exp

What is the implant site evaluation, Implant site evaluation 1. Ridge:...

Implant site evaluation 1. Ridge: Total buccolingual width of the ridge- the thickness of the soft tissue ( bucally +lingually)= Buccolingual width of the bone. There shou

Viriods and prions, Viriods and Prions Viroids In 1971, T.O...

Viriods and Prions Viroids In 1971, T.O.Diener reported that the spinde tuber disease of potato causing gnarling and cracking of the tuber, is caused by multiplica

What is biology, what is biology

what is biology

What happens to denatured enzyme regarding it functionality, What happens t...

What happens to a denatured enzyme regarding its functionality? How can that result be explained with the help of the lock and key model? According to the lock and key model th

Amphibians, respiratory system in amphibains

respiratory system in amphibains

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages