Question

why Darwin was unable to explain cause of variation?
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Answer 1

Answer:

Darwinism is a theory of biological evolution developed by Charles Darwin and others, stating that all species of organisms arise and develop through the natural selection of small, inherited variations that increase the individual's ability to compete, survive, and reproduce. Also called as Darwinian theory, it originally included the broad concepts of transmutation of species or of evolution which gained general scientific acceptance when Charles Robert Darwin published, 'On the Origin of Species', including concepts which predated Darwin's theories, but subsequently referred to specific concepts of natural selection, the Weismann barrier or in genetics the central dogma of molecular biology. Darwinism offered no satisfactory explanation for the source of new genetic information from which natural selection could select. Bergson's theory proposed a non-Darwinian mechanism to produce new genetic information that, in turn, allowed well documented mechanisms, including natural selection, to function. So, Darwin theory fails to explain origin and transmission of variations. 

Explanation:

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Answer 2

Explanation:

DARWIN'S DIFFICULTIES WITH BLENDING INHERITANCE AND HIS THEORY OF PANGENESIS. Darwin failed to understand the significance of these results because he had no model of particulate inheritance that could be applied to genetic data.

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