The following points highlight the top six types of hypothesis with respect to origin of eukaryotic cell. The hypothesis are: 1. Independent Hypothesis 2. Endogenous Theory (Filiation Theory) 3. Chimera Hypothesis 4. Endosymbiotic Theory 5. Serial Endosymbiotic Theory (Set) 6. Syntrophy Hypothesis. Type # 1. Independent Hypothesis: The unique nature of the eukaryotic nucleus with […]
Hypothesis and the Origin of Eukaryotic Cell | Biology
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Modern Concept on the Origin of Life (With Diagram)
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In this article we will discuss about Modern Concept on the Origin of Life. In an International conference on the origin of life on earth in Moscow, the Russian Biochemist A.I. Oparin (1968) stated that life is a special form of matter in motion arising in an orderly manner at a certain stage in the […]
Origin of Species: Modes and Mechanisms
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In this article we will discuss about the modes and mechanisms of origin of species. Modes of Origin of Species: The main modes of speciation are: 1. Sympatric speciation: This is the origin of species without geographic isolation. Sympatric species originate by instantaneous development of isolating mechanisms within a deme. Once reproductive isolation is established […]
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