Home
Class 12
BIOLOGY
Assertion :- Homologous organs suggest s...

Assertion :- Homologous organs suggest same origin.
Reason :- Organs which are simillar in function and dissimilar in internal morphology called as Homologous organs.

A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.

B

If both Assertion & Reason are True but Reason is a not a correct explanation of the Assertion.

C

If Assertion is True but the Reason is False.

D

If both Assertion & Reason are false.

Text Solution

AI Generated Solution

The correct Answer is:
### Step-by-Step Solution: 1. **Understanding the Assertion**: The assertion states that "Homologous organs suggest same origin." This is true. Homologous organs are those that have a similar structure and origin, even if they serve different functions in different species. For example, the forelimbs of humans, whales, and bats have similar bone structures, indicating a common evolutionary origin. 2. **Understanding the Reason**: The reason provided states that "Organs which are similar in function and dissimilar in internal morphology are called homologous organs." This is false. The correct term for organs that are similar in function but dissimilar in structure is "analogous organs." An example of analogous organs would be the wings of birds and insects; they serve the same function (flying) but have different structural origins. 3. **Conclusion**: Since the assertion is true and the reason is false, we conclude that the assertion correctly describes homologous organs, while the reason incorrectly defines them. ### Final Answer: - Assertion: True - Reason: False
Promotional Banner

Topper's Solved these Questions

  • ORIGIN & EVOLUTION OF LIFE

    ALLEN|Exercise EXERCISE-III B(ANALYTICAL QUESTIONS)|35 Videos
  • ORIGIN & EVOLUTION

    ALLEN|Exercise S|65 Videos
  • PHOTOSYNTHESIS IN HIGHER PLANTS

    ALLEN|Exercise Match the column|3 Videos

Similar Questions

Explore conceptually related problems

Homologous organs are

Homologous organs are

Homologous organs are

Homologous organs are :

Homologous organs have

Homologous organs have

Homologous organs have :

Homologous organs exhibit :

Homologous organs explain

Define homologous organs.

ALLEN-ORIGIN & EVOLUTION OF LIFE-EXERCISE-IV (ASSERTION & REASON)
  1. Assertion :- Birds and dinosaurs are close relatives to each other. ...

    Text Solution

    |

  2. Assertion :- In England, before industrialisation, it was observed tha...

    Text Solution

    |

  3. Assertion :- In a mixed population those that can better-adapt, surviv...

    Text Solution

    |

  4. Assertion :- Australian marsupials can be taken as an example of adapt...

    Text Solution

    |

  5. Assertion :- Tasmanian wolf and Placental wolf are the good example of...

    Text Solution

    |

  6. Assertion :- The rate of appearance of new forms is liked to the life ...

    Text Solution

    |

  7. Assertion :- According to Lamarck, evolution of life forms had occured...

    Text Solution

    |

  8. Assertion :- According to Hugo de Vries , it is mutation which causes ...

    Text Solution

    |

  9. Assertion :- Due to continental drift pouched mammals of Australia sur...

    Text Solution

    |

  10. Assertion :- Big-Bang theory talks of a singular huge explosion unimag...

    Text Solution

    |

  11. Assertion :- All mammals like whales, bats cheetah and human etc. shar...

    Text Solution

    |

  12. Assertion :- Branching descent and Natural selection are the two key c...

    Text Solution

    |

  13. Assertion :- Analogous structures are a result of convergent evolution...

    Text Solution

    |

  14. Assertion :- The original drifted population in new habitat becomes fo...

    Text Solution

    |

  15. Assertion :- Homologous organs suggest same origin. Reason :- Organs...

    Text Solution

    |

  16. Assertion :- Origin of virus like structure is an example of retrogres...

    Text Solution

    |

  17. Assertion :- The aquatic mammals like Dolphins whales etc. do not cont...

    Text Solution

    |

  18. Assertion :- Dog fish and Whale are example of Homology. Reason : An...

    Text Solution

    |

  19. Assertion :- Dog fish and Whale are example of Homology. Reason : An...

    Text Solution

    |

  20. Assertion :- Darwin's finches are classical example of natural selecti...

    Text Solution

    |