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

Heterosis

B

Transformation

C

Splicing

D

Metamorphosis

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • Plant Physiology

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|91 Videos
  • Protista

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|5 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

TRUEMAN BIOLOGY-PRINCIPLES OF INHERITANCE AND VARIATIONS -MCQs
  1. Which one of the following conditions correctly describes the manner o...

    Text Solution

    |

  2. What are those structures that appear as 'beads-on-string' in the chro...

    Text Solution

    |

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

    Text Solution

    |

  4. Test cross in plants or in Drosophila involves crossing

    Text Solution

    |

  5. Which one of the following conditions of the zygotic cell would lead t...

    Text Solution

    |

  6. If a colour bind man marries a woman who is normal but carries this tr...

    Text Solution

    |

  7. If F(1) generation has all tall plants and ratio of F(2) generation is...

    Text Solution

    |

  8. Multiple phenotype is seen in

    Text Solution

    |

  9. Mitotic chromosomes are stained with

    Text Solution

    |

  10. The term genetics was coined by

    Text Solution

    |

  11. A normal-visioned man whose father was colour-blind, marries a woman w...

    Text Solution

    |

  12. "F"(2) generation in Mendelian cross showed that both genotypic and p...

    Text Solution

    |

  13. A test cross is carried out:

    Text Solution

    |

  14. A woman with straight hair mates with man with curly hair who is known...

    Text Solution

    |

  15. Which of the following crosses and resultant phenotypic ratios are mis...

    Text Solution

    |

  16. The segment of DNA which participates in crossing over is termed as

    Text Solution

    |

  17. Lampbrush chromosomes are giant chromosomes which are commonly seen in

    Text Solution

    |

  18. In which type of chromosome, one arms is very long and one arm is ver...

    Text Solution

    |

  19. Highest number of chromosomes is found in the gamete of

    Text Solution

    |

  20. X-chromosomes or X-body was first observed by

    Text Solution

    |