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Choose correct option regarding the concept of Darwin and Hugo de Vries.
Darwin Hugo de Vries
1. Evolution is by saltation Evolution is gradual
2. Directionless variations Directional mutations
3. Variations are subjected to natural selection Mutations are not subjected to natural selection
4. Small, directional variations cause evolution Random large heritable mutations cause evolution

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answer is D.

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Detailed Solution

Variations are small and directional according to Darwin.

Mutations are random, large and heritable according to Hugo de Vries.

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