NEET 2018 Biology question

According to Hugo de Vries, the mechanism of evolution is

(1)Phenotypic variations
(2)SaltationCorrect
(3)Multiple step mutations
(4)Minor mutations

Answer: (2)

Solution

Hugo de Vries, working on evening primrose (Oenothera lamarckiana), proposed the mutation theory: evolution takes place by sudden, large, single-step, discontinuous variations called mutations

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Question ID VK-092354