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Question
de Vires gave his mutation theory on organic evolution while working on
Options
A.Pisum sativum
B.Drosophilla melanogaster
C.Oneothera lamarckiana
D.Althea rosea
Solution
Hugo de Vries (1848-1953) proposed mutation theory of the formation of new species. According to him, new species are not formed by continuous variations but by sudden appearance of variations which he assigned as mutataions. He started that these mutations are heritable and persist in successive generations. For proposing this theory he performed experiments on Oneothera lamarckiana (evening primrose).
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