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

splicing

B

heterosis

C

transformation

D

metamorphosis

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • HUMAN REPRODUCTION

    GRB PUBLICATION|Exercise All Questions|439 Videos

  • MICROBES IN HUMAN WELFARE

    GRB PUBLICATION|Exercise Assertion-Reason Type Questions|49 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

GRB PUBLICATION-MENDELIAN INHERITANCE-Multiple Choice Questions
  1. graphical representation to calculate the probability of all possible ...

    Text Solution

    |

  2. Which one of the following cannot be explained on the basis of Mendel'...

    Text Solution

    |

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

    Text Solution

    |

  4. The variation/difference in the offspring of a species from their pare...

    Text Solution

    |

  5. If two pea plants having red (dominant) coloured flowers with unknown...

    Text Solution

    |

  6. In a polygenic cross Aa Bb Cc xx Aa Bb Cc, the phenotypic ratio of off...

    Text Solution

    |

  7. Mendel's principle of segregation means that the germ cells always rec...

    Text Solution

    |

  8. In Mendelian dihybrid cross when heterozygous Round Yellow are self cr...

    Text Solution

    |

  9. If a cross between two individuals produces offsprings with 50% domina...

    Text Solution

    |

  10. How many types of genetically different gametes will be produced by a ...

    Text Solution

    |

  11. Test cross in plants or in Drosophila involves crossing:

    Text Solution

    |

  12. Test cross of dihybrid ratio is 1:1:1:1. It proves that

    Text Solution

    |

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

    Text Solution

    |

  14. Multiple phenotype is seen in

    Text Solution

    |

  15. Mendel was successful in discovering the principles of inheritance as

    Text Solution

    |

  16. Mendelism principles are not applicable in case of:

    Text Solution

    |

  17. How many different types of gametes are formed from AaBbCcDdEe?

    Text Solution

    |

  18. When yellow round heterozygous Pea Plants are self fertilized, the fre...

    Text Solution

    |

  19. A test cross is carried out:

    Text Solution

    |

  20. A man having the genotype EEFfGgHH can produce P number of genetically...

    Text Solution

    |