Pangenesis theory - pre-mendelian theory, Biology

Assignment Help:

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.


Related Discussions:- Pangenesis theory - pre-mendelian theory

Under which environments do echinoderms live, Q Under which environments do...

Q Under which environments do echinoderms live? Echinoderms are marine animals and they live in salt water.

Who are a group of lay people without background science, In detail describ...

In detail describe the structure and function of the heart and blood flow. Include the conduction system and blood vessels. Make your response specific to your audience who are a g

Show the collection of primary samples of grain, Q. Show the Collection of ...

Q. Show the Collection of Primary Samples of grain? Sampling of grains begins with the collection of the primary sample i.e. sample of the consignment. The process involved in

Why is the determination of the blood types of the donor, Why is the determ...

Why is the determination of the blood types of the donor and of the recipient important in transfusions? The Red blood cells have different antigens in the outer surface of the

Excretion, How many kidney in man?

How many kidney in man?

Flowering and endogenous rhythms, Flowering and Endogenous Rhythms Th...

Flowering and Endogenous Rhythms The last four decades of studies in animals and plant physiology have clearly established the existence of a biological clock mechanism to me

Classification of freshwater ecosystems, Classification of Freshwater Ecosy...

Classification of Freshwater Ecosystems Fresh water ecosystems depend on the terrestrial ecosystems for large quantities of organic and inorganic matter which are constantly a

What is the change in allele frequency in a population, Microevolution is: ...

Microevolution is: the change in allele frequency in a population. Cannot occur if genetic equilibrium is reached. Results in the formation of a new species. Is influenced by mutat

How is the circulatory system of reptiles characterized, How is the circula...

How is the circulatory system of reptiles characterized? What is the basic difference among the reptile and the amphibian heart? The circulatory system of beings of the class R

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd