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Question

Hugo de Vries proposed mutation theory based on his experiments on

A
Drosophila melanogaster
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B
Pisum sativum
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C
Oenothera lamarckiana
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D
None of these
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Solution

The correct option is C Oenothera lamarckiana
Darwin proposed that natural selection and variation leads to speciation, which ultimately results in evolution.
To explain how these variation actually arise, Hugo de Vries proposed the mutation theory based on his experiments on the plant Oenothera lamarckiana (evening primrose). According to this, sudden heritable changes in the genome of an organism would result in variation, speciation and eventually, evolution.

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