Pangenesis theory - pre-mendelian theory, Biology

Pangenesis Theory

(i)         Charles Darwin propounded pangenesis theory.

(ii)         According to this theory every cell, of animal body produces many minute particles known as pangenes or gemmules.

(iii)        These gemmules are discharged in the blood stream and are deposited in the reproductive organs. These reproductive cells contain these pangenes and a child develops as a result of blending of the pangenes from two parents.

(iv)        Thus the individual would represent the mixture of both of the parents. The prevailing view of heredity in premendelian era was a Blending Theory.

Posted Date: 10/10/2012 3:21:47 AM | Location : United States







Related Discussions:- Pangenesis theory - pre-mendelian theory, Assignment Help, Ask Question on Pangenesis theory - pre-mendelian theory, Get Answer, Expert's Help, Pangenesis theory - pre-mendelian theory Discussions

Write discussion on Pangenesis theory - pre-mendelian theory
Your posts are moderated
Related Questions
what is phylum mollusca?

Soil Water Soil water relationship is very important. In the fist place the supply of large quantities of water is necessary to satisfy the evapo-transpiration requirements of

Thiazide diuretics have been accepted as the primary foundation of antihypertensive therapy. The basis of this choice is that, apart from their primary hypotensive effect, they enh

Explain Composition of Human Milk? Research clearly shows that each type of mammalian milk is unique and consists of a highly complex mixture of organic and inorganic compounds

Glycogenolysis:   It is breakdown  of glycogen to glucose  by means  of the   reaction   series  shown  in figure 6.11 Like glycogenesis  it also  occurs in all  body  cells , But

Define Intra enterocyte transport - non-haem iron absorption? Intra enterocyte transport: In the enterocyte, the absorbed iron can have one of the following metabolic fates:

What are the properties og Gels? Polysaccharides, proteins or colloidal complex particles, such as caseinate micelles  form gels at levels of 10% or less. Gums, pectin and gela

How do we Treat Protein Energy Malnutrition? Major objective of the treatment of PEM is to provide adequate energy and protein intake and control infections, if any. Mild and m

Is transpiration the only way through which leaves lose water? Plants do not only lose water as vapor, as by transpiration. The leaves also lose liquid water by a phenomenon c

Explain the Faecal Coliforms - Microbiological Study of Water? The faecal coliforms include a wide range of bacteria, many of which are not primarily the intestinal bacteria. T