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

Animal classification, Explain metachrosis in frogs? How it is different fr...

Explain metachrosis in frogs? How it is different from change of skin colour of chemleon?

Respiration, what is the organ of respiration in snaks

what is the organ of respiration in snaks

What do you determine by mantle, What do you determine by Mantle? A thi...

What do you determine by Mantle? A thin sheetlike membranous extension of visceral mass of molluscs which forms two flaps of skin. Mantle secretes the shell on the dorsal side

Define about the pancreatic cancer, Define about the Pancreatic Cancer? ...

Define about the Pancreatic Cancer? This is a condition often associated with abdominal pain, anorexia, nausea, and vomiting and weight loss. Ealing may aggravate pain. There m

Define procedure for measurement of ph, Define Procedure for Measurement of...

Define Procedure for Measurement of pH? To ensure reliability of the pH readings, you should first calibrate the pH meter. You should adjust the pH meter so that the readings a

What is the role of linked traits in genetics, What is the role of Linked T...

What is the role of Linked Traits in genetics? In his study of inheritance in the fruit fly, Morgan observed that certain genes are distributed together, or linked, rather than

Which represents the least potential electromotive force, In a neuron with ...

In a neuron with a resting potential of -65 mV, the distribution of which ion across the neuronal membrane represents the LEAST potential electromotive force (EMF)? A. Potassium

Describe the roles and mechanisms of these rna molecules, 1 ." Most of the ...

1 ." Most of the genome does not code for protein, therefore 99% of the human genome is junk that serves no purpose". With specific reference to examples long and short non-coding

Element required by higher plants, Element Required By Higher Plants T...

Element Required By Higher Plants Table shows the list of sixteen elements that fulfil the criteria of essentiality stated above, their approximate adequate concentration and

List various liver function tests, Question 1 List various liver function ...

Question 1 List various liver function tests. Discuss the importance of each test. Add a note on standardization of various liver function tests Question 2 Discuss the follow

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