Theory of embryology - mosaic thoery, Biology

MOSAIC THOERY -

It was given by W. Roux.

He studied the development of frog's egg. He destroyed one cells by a hot needle out of 2-cells formed as a result of first cleavage. He observed that the remaining cell formed only half of the embryo.

On the basis of the above experiment, he derived a conclusion that the fate of various parts of the egg is predecided.

He further explained that these substances of the eggs remain undifferentiated before fertilization.

The fertilizaton causes reorientation of these substances & the cleavage separates these substances.

Posted Date: 10/3/2012 6:54:50 AM | Location : United States







Related Discussions:- Theory of embryology - mosaic thoery, Assignment Help, Ask Question on Theory of embryology - mosaic thoery, Get Answer, Expert's Help, Theory of embryology - mosaic thoery Discussions

Write discussion on Theory of embryology - mosaic thoery
Your posts are moderated
Related Questions
Determine the significance of Siphuncle. A cord of tissue that passes between different chambers of a Nautilid shell. Siphuncle regulates the amount of air or fluid in chambers

what are intergenic interactions ? please explain with example of cross breeding. and how we calculate the phenotype and genotype. explain epistasis, duplicate genes, supplementary

Protozoans Prokaryotes represent only a few thousand of the estimated 2 million species of living beings known on the earth today. The rest are mostly eukaryotes that form the

Define the Classification of Carbohydrates? If you go back and read up your theory, you will recall that there are four main classes of carbohydrates based on the number of mon

How are the bacteria and the archaea different from all the other cellular microbes? -They have cell walls? -They can move? -They reproduce asexually? -They have no nucleus?

Explain the Importance of nicotinic acid Nicotinic acid is successfully used in the therapy of a number of vascular disorders such as vascular spasms, angina pectoris, arthriti

Explain the difference between meiosos and mitosis

Features of Amphibian Gastrulation Major features of amphibian gastrulation are: Ectoderm surrounds the embryo by Epiboly. Gastrulation is initiated by a limited i


BAER' S LAW - It was given by K.E. Von Baer. Von Baer was the first scientist who studied the embryology systematically. According to it, in the embryonic development of an