Home
Class 12
BIOLOGY
When two unrelated individuals or lines ...

When two unrelated individuals or lines are crossed, the perfomance of `"F"_(1)` hybrid is often superior to both its parents. This phenomenon is called:

A

transformation

B

splicing

C

metamorphosis

D

heterosis

Text Solution

Verified by Experts

The correct Answer is:
D

The supeiority of hybrids over either of the parents (doinaant or recessive) is called hybrid vigour (G shull) .Heterosis is equivalent of hybrids vigour.
Promotional Banner

Topper's Solved these Questions

  • SEXUAL REPRODUCTION IN FLOWERING PLANTS

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise MCQ|80 Videos
  • STRUCTURAL ORGANISATION IN ANIMALS

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise All Questions|43 Videos

Similar Questions

Explore conceptually related problems

When two unrelated individuals or lines are crossed, the performance of F_(1) hybrids is often superior to both its parents. The phenomenon is called

"F"_(1) hybrid is intermediate between the two parents. The phenomenon is:

F_(1) hybrid is intermediate between the two parents. The phenomenon is

Thephenotype of F_(1) hybrid resembles either of the two parents in

Production of superior F_(1) hybrids is called

Te crossing of F_(1) hybrid with either of the parents is known as______________.

A cross between F_(1) hybrid and recessive parent gives a ratio of

NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION-EXERCISE
  1. Himgiri developed by hybridization and selection for disease resistanc...

    Text Solution

    |

  2. consider the following statements (I-II) about organic farming.

    Text Solution

    |

  3. When two unrelated individuals or lines are crossed, the perfomance of...

    Text Solution

    |

  4. Mutations can be induced with

    Text Solution

    |

  5. Breeding of crops with high levels of minerals vitamins and proteins c...

    Text Solution

    |

  6. Somaclones are obtained by

    Text Solution

    |

  7. Which is linked to discovery of Bordeaux mixture as fungicide ?

    Text Solution

    |

  8. Chick pea is being grown in area where bacterial blight is common. Wha...

    Text Solution

    |

  9. In cloning of cattle a fertilised egg is taken out of the mother's wom...

    Text Solution

    |

  10. Compared to a bull a bullock is docile because of

    Text Solution

    |

  11. Which one of the following is a viral disease of poultry?

    Text Solution

    |

  12. Which one of the following pair is mismatched?

    Text Solution

    |

  13. Farmers in aparticlular region were concerned that pre mature yellowin...

    Text Solution

    |

  14. In maize, hybrid vigour is exploited by:

    Text Solution

    |

  15. In order to obtains virus plants through tissue culture the best metho...

    Text Solution

    |

  16. Golden rice is a transgenic crop of the future with the following impr...

    Text Solution

    |

  17. crop plants grown in monoculture are

    Text Solution

    |

  18. Triticale the first man made cereal crop has been obtained by crossing...

    Text Solution

    |

  19. Three crops that contribute maximum to global food production are

    Text Solution

    |

  20. Norman Borlaug is associated with

    Text Solution

    |