Home
Class 12
BIOLOGY
[A]: Cabbage, cauliflower, Kohlrabi, Bro...

[A]: Cabbage, cauliflower, Kohlrabi, Broccoli and Brussels have descended from a common ancestor Colewort (Brassica oleracea).
[R]: These varieties were produced through selective breeding (artificial selection) of domesticated wild species

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • Fungi

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|27 Videos

  • GENETICS AND EVOLUTION

    TRUEMAN BIOLOGY|Exercise SECTION-A|34 Videos
TRUEMAN BIOLOGY-Genetics-ASSERTION AND REASON
  1. [A]: The first life originated was chemoheterotrophic. [R]: The f...

    Text Solution

    |

  2. [A]: Evolution is a theory. [R]: As it is based on causes and evi...

    Text Solution

    |

  3. [A]: Cabbage, cauliflower, Kohlrabi, Broccoli and Brussels have descen...

    Text Solution

    |

  4. [A]: Evolution is not occurring at present. [R]: Evolution is a v...

    Text Solution

    |

  5. [A]: According to the theory of Lamarck use and disuse caused the incr...

    Text Solution

    |

  6. [A]: Fossils of Peking man were discovered from caves near Peking in 1...

    Text Solution

    |

  7. [A]: Man's most characteristic feature in which it differs from all it...

    Text Solution

    |

  8. [A]: Darwin held that small favourable varia- tions formed the raw mat...

    Text Solution

    |

  9. Assertion : A single mutation may produce a new species . Reason : M...

    Text Solution

    |

  10. [A]: Isolation prevents inbreeding among the otherwise potential mates...

    Text Solution

    |

  11. [A]: lnterspecific mating often produces a more vigorous but sterile F...

    Text Solution

    |

  12. [A]: Basis of adaptation is the pre existing gene mutation. [R]: ...

    Text Solution

    |

  13. [A]: Artitical selection is done only in animal breeding. [R]: Ar...

    Text Solution

    |

  14. [A]: Presence of tail in children is a vestigial character. [R]: T...

    Text Solution

    |

  15. [A]: Mimics are always or more often defenceless. [R]: Mimics are...

    Text Solution

    |

  16. [A]: The process of speciation occurs in allopatric populations. ...

    Text Solution

    |

  17. [A]: The establishment of reproductive isola- tion is an event of biol...

    Text Solution

    |

  18. [A]: Random mutations together with genetic drifts and selection press...

    Text Solution

    |

  19. [A]: Varied groups of plants and animals ei- ther related or unrelated...

    Text Solution

    |

  20. [A]: The natural hybrids of the species are either totally absent or a...

    Text Solution

    |