Home
Class 12
BIOLOGY
Directional selection favour :...

Directional selection favour `:`

A

one extreme form over the other extreme form and over intermediate form of a trait

B

both extreme forms of a trait

C

intermediate form of a trait

D

environment differences

Text Solution

Verified by Experts

The correct Answer is:
a
Promotional Banner

Topper's Solved these Questions

  • ORGANIC EVOLUTION

    GRB PUBLICATION|Exercise SPECIATION|22 Videos

  • MICROBES IN HUMAN WELFARE

    GRB PUBLICATION|Exercise Assertion-Reason Type Questions|49 Videos

  • ORGANISMS AND ENVIROMENT

    GRB PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|248 Videos

Similar Questions

Explore conceptually related problems

Assertion : Balanced polymorphism is directly related with directional selection. Reason : Directional selection favor the maximum dominancy of characters.

Directional selection usuallt acts to favour

Stablising selection favours.

Assertion: Disruptive selection changes the population towareds one particular direction. Reason: This type of selection favours average sized individuals.

Industrial melanism is an example of stabilizing selection/directional selection

GRB PUBLICATION-ORGANIC EVOLUTION -REPRODUCTIVE ISOLATION
  1. The unit of natural selection is :

    Text Solution

    |

  2. Major radiation of mammals, birds and pollinating insects took place i...

    Text Solution

    |

  3. Directional selection favour :

    Text Solution

    |

  4. Which is the correct Aristotle's ladder of nature ?

    Text Solution

    |

  5. In evolution, the resemblance between widely different animals due to ...

    Text Solution

    |

  6. Which is not explained by Lamarckism ?

    Text Solution

    |

  7. Statement (S): Species are groups of potentially interbreeding natural...

    Text Solution

    |

  8. Assertion (A ) : The long neck of giraffe is due to centripetal select...

    Text Solution

    |

  9. Arrange the periods of palaeozoic era in ascending order in a geologic...

    Text Solution

    |

  10. The natural selection that acts against change in form and keeps the p...

    Text Solution

    |

  11. The formation of two species from one ancestral species is known as

    Text Solution

    |

  12. Which of the following have not left any evidence of organic evolution...

    Text Solution

    |

  13. The presence of recessive trait in a large population is be 16% the fr...

    Text Solution

    |

  14. Frequencyof an autosomal recessive lethal gene is 0.4 Frequency of car...

    Text Solution

    |

  15. Where there is sustained directional change in the average characters ...

    Text Solution

    |

  16. Plants fo the Galapagos Islands resembles most closedly to the plants ...

    Text Solution

    |

  17. Inclusive fitness theory is proposed by

    Text Solution

    |

  18. Prototherians are connecting link between :

    Text Solution

    |

  19. Darwin finches are related to which of the following evidences ?

    Text Solution

    |

  20. Allopatric speciation is due to

    Text Solution

    |