Which one of the following phenomena supports Darwin's concept of natural selection in organic evolution?

  • A
    Development of transgenic animals
  • B
    Production of 'Dolly',the sheep by cloning
  • C
    Prevalence of pesticide resistant insects
  • D
    Development of organs from 'stem cells' for organ transplantation

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$A$: Mutations are non-directional.
$R$: Darwin's small variations are directional.

Which scientist proposed the theory of continuity of germplasm?

The modern theory of organic evolution,also known as the Synthetic Theory of Evolution,is based on which of the following factors?

Select the correct option for gene flow.

The three natural processes that form the basis for evolution are

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