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Hugo de Vries stressed on...

Hugo de Vries stressed on

A

The adaptivesness of variation in evolution

B

The randomness of variation in evolution

C

The inheritance of acquired variation in evolution

D

The inheritance of fluctuating variation in evolution

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The correct Answer is:
B
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AAKASH SERIES-EVOLUTION-EXERCISE - I (BIOLOGICAL EVOLUTION ( THEORIES OF EVOLUTION & MECHANISM OF EVOLUTION))
  1. According to Darwin during the struggle for existence, these organisms...

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  2. A sudden, random, discontinuous and heritable change is

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  3. Hugo de Vries stressed on

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  4. New species arise by sudden jump according to

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  5. There are no intermediate stages in the course of evolution according ...

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  6. According to Darwin, if new variations are to be inherited they should...

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  7. Hugo de Vries gave his mutation theory on organic evolution while work...

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  8. The most likely reason for the development of resistance against pesti...

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  9. Which one of the following scientist's name is correctly matched with ...

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  10. Which of the following evidences does not favour the lamarckian concep...

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  11. The diversity in the type of beaks of finches adapted to different fee...

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  12. Darwinism explains all the following except

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  13. Given below are four statements (A-D) each with one or two blanks. Sel...

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  14. Single step large mutation leading to speciation is also called

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  15. By the statement 'survival of the fittest', Darwin meant that

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  16. Which of the following are the two key concepts of Darwinian theory of...

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  17. According to Lamarckism, long necked giraffes evolved because

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  18. Each of us is part of the ongoing evolution of the species which of th...

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  19. Which of the following statements about natural selection are correct?...

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  20. Replacement of the lighter-coloured variety of peppered moth (Biston b...

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