The following points highlight the top two theories based on origin of mitochondria and chloroplasts. The theories are: 1. Endosymbiont Theory 2. Direct Filiation Theory. 1. Endosymbiont Theory: This theory is based on the similarities of chloroplasts and mitochondria with prokaryotic cells. These organelles possess their own genetic material (DNA) as well as the machinery […]
Origin of Mitochondria and Chloroplasts
Article Shared by 
3 Main Types of Allopolyploidy
Article Shared by
The following points highlight the three main types of allopolyploidy. The types are: 1. Segmental Allopolyploidy 2. Genome Allopolyploidy 3. Auto-Allopolyploidy. Type # 1. Segmental Allopolyploidy: Some degree of homology (partial homology) may exist between some chromosome of one genome and those of the other genome. Therefore, in such polyploids both bivalents and multivalents are […]
Autotetraploids: Origin and Chromosome Pairing | Euploidy
Article Shared by
In this article we will discuss about:- 1. Origin and Occurrence of Autotetraploids 2. Chromosome Pairing and Chiasma Formation in Autotetraploids 3. Fertility 4. Genetics. Origin and Occurrence of Autotetraploids: Autotetraploids originate both spontaneously and can be experimentally induced; the various means of their origin are briefly described below: A. Spontaneous origin: (1) In diploid […]
This is a question and answer forum for students, teachers and general visitors for exchanging articles, answers and notes. Answer Now and help others.
Answer Now
Answer Now
Here's how it works:
- Anybody can ask a question
- Anybody can answer
- The best answers are voted up and rise to the top
Powered by WordPress. Designed by 