Theory of embryology - baer''s law, Biology

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 animal, the general characters are formed first and the special characters are formed in the last.

Karl Von baer called "Father of modern embryology".

In 1828 published "Developmental history of animal" and proposed that differentiation in eggs during development.

Afters Baer's law preformation theory derecognized.

Baer's law &

(i) During developent simple chracters firstly expressed than specific characters.

(ii) Very simple characters earlier seen than simple character.

(iii) Diffrerent species embryos are similar than these adults.

Posted Date: 10/3/2012 6:50:41 AM | Location : United States







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

Write discussion on Theory of embryology - baer''s law
Your posts are moderated
Related Questions
Plants of the open water zone In this zone plants are restricted to the limnetic one and generally consist of phytoplankton such as dinoflagellates, blue green algae and green

Explain about the Canning of Food? You must have seen the markets flooded with canned products. Can you name a few of such products? Yes the canned juices, canned aerated drink

Explain about the Light sense You  must be  aware that when you  enter  into a cinema hall, you  are unable  to  see  and  find  out your  seat  initially for  a few minutes; b

Etiology Fevers can be caused due to 1. Internal (endogenous) factors:  This could be caused within the body. Examples are antigen-antibody reactions, malignant cancer, graf

PLACEN T A - Placenta is the intimate connection between the foehls and the uterine wall of the mother to exchange the materials. Placenta is a tempormy endocrine gland

Disadvantages of Ridgemapping  a) Traumatic procedure b) Time consuming procedure and needs more armamentarium c)  There is an inherent risk of inaccuracy especially whil

Monosaccharide Sugar - carbohydrate consisting of a single sugar unit Have an aldehyde or a ketone group and 2-5 alcohol groups depending of the # of carbons

R a d i o g r a p h y: Radiograph or X-ray remains the most well-known and primary diagnostic tool of all the imaging modalities. It works b

Define Prevention of vitamin A deficiency? Since dietary inadequacy is the major cause for micronutrient deficiencies, the most rational approach to prevent these deficiencies

Metameric segment - Segmentation On the other hand true metameric segment as best observed in annelids has separate schizocoelic body cavity of mesodermal origin in each segme