Customer Service Chat
Get quote & make Payment
Theory of germplasm, Biology
Y OF GERMPLASM -
August Weismann (1834-1914) criticized the inheritance of acquired characters by putting forward the theory of continuity of germplasm.
According to this theory, the characters of influencing the germ cells are only inherited.
There is a continuity of germplasm (protoplasm of germ cells) is not transmitted to the next generation hence it does not carry characters to next generation.
Weismann disproved the inheritance of acquired characters by cutting off the tails of rats for about 20 generations and allowed them to breed but tailless rats were never born.
Weismann stated that organisms comprises of two types of protoplasm - the germplasm, the protoplasm present in germ cells only and which is passed on to the offsprings, and the somatoplasm, the protoplasm forming remain of the body part and plays no role in heredity.
Darlington commented - "Lamarck's theory is an evergreen superstition".
S AGAINST THE THEORY -
Muscles of arms and shoulder in blacksmiths.
Circumcison of foreskin of penis in jews and muslims.
Piercing of ear -lobe in Indian women.
Shaving of beard in man.
The wrestler's powerful muscles are not transmitted to the offsprings.
Chinese women used to wear iron shoes in order to have small feet, but their children at the time of birth always normal feet.
Posted Date: 10/9/2012 1:02:23 AM | Location : United States
Ask an Expert
Theory of germplasm, Assignment Help, Ask Question on Theory of germplasm, Get Answer, Expert's Help, Theory of germplasm Discussions
Write discussion on Theory of germplasm
Your posts are moderated
Write your message here..
Explain lactate dehydrogenase, Lactate dehydrogenase (LDH) is one of the im...
Lactate dehydrogenase (LDH) is one of the important enzymes in glycolysis which catalyzes the interconversion of pyruvate and lactate as follows: Functional lactate d
A haploid cell attempted to perform meiosis, What problem would most likely...
What problem would most likely to occur if a haploid cell attempted to perform meiosis? The cell could not replicate its DNA prior to meiosis.The cell could not pair homologous
Discuss about brain, Brain Brain is a part of central nervous system wh...
Brain Brain is a part of central nervous system which lies in the skull. Source: Sears and Windwood, Anatomy and Physiology for Nurses The different parts of the bra
Pre-operative nursing management of cardiac surgical patient, PRE-OPERATIVE...
PRE-OPERATIVE NURSING MANAGEMENT OF CARDIAC SURGICAL PATIENTS Cardiac surgical patients generally get investigated thoroughly before getting referred to the surgeons. Many of
Animal diversity, what is exonephric
what is exonephric
Fission - asexual reproduction, Normal 0 false false false ...
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
State the young''s trichromatic theory, Young's Trichromatic Theory Ac...
Young's Trichromatic Theory According to Young's theory, three types of cones exist, each sensitive to a particular pigment-rythrolabe (red), chlorolabe (green), and cyanolabe
Define viscosity and consistency of protein systems, Define Viscosity and C...
Define Viscosity and Consistency of Protein Systems? Viscosity and consistency of protein systems are the important functional properties in fluid foods, such as beverages, sou
How to improve natural history with congenital heart disease, How to improv...
How to improve natural history of adults with congenital heart disease? Improving the natural history of adults with CHD: As mentioned above the populations of adults with CH
What do you mean by advanced characters, What do you mean by Advanced chara...
What do you mean by Advanced characters The traits, or characteristics, that an animal has that are not ancestral to the taxon. They appear later in the evolutionary history of
Accounting Assignment Help
Economics Assignment Help
Finance Assignment Help
Statistics Assignment Help
Physics Assignment Help
Chemistry Assignment Help
Math Assignment Help
Biology Assignment Help
English Assignment Help
Management Assignment Help
Engineering Assignment Help
Programming Assignment Help
Computer Science Assignment Help
Why Us ?
~24x7 hrs Support
~Quality of Work
~Time on Delivery
~Privacy of Work
Human Resource Management
Literature Review Writing Help
Terms & Conditions
Copyright by ExpertsMind IT Educational Pvt. Ltd.