Home
Class 12
BIOLOGY
Assertion: Parthenogenesis does not cont...

Assertion: Parthenogenesis does not contribute to organic evolution.
Reason: Parthenogenesis is a method to establish triploid and aneuploid chromosomal combination.

A

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

B

If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.

C

If Assertion is true but the Reason is false.

D

If both Assertion and Reason are false.

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • REPRODUCTION IN ORGANISMS

    ICSE|Exercise COMPETITION CORNER OBJECTIVE TYPE QUESTIONS ((A) Multiple Choice Questions (MCQs) Choose the correct option)|37 Videos
  • QUESTION PAPER 2022 TERM 1

    ICSE|Exercise MULTIPLE CHOICE QUESTIONS|45 Videos
  • REPRODUCTIVE HEALTH

    ICSE|Exercise SOURCE BASED QUESTIONS|23 Videos

Similar Questions

Explore conceptually related problems

Assertion : Parthenogenesis does not play any role in organic evolution. Reason : In parthenogenesis females develop into new organisms without fertilisation.

Assertion: Variations are important for the process of evolution. Reason: Meiosis increases the genetic variability in the population of organisms from one generation ot the next.

Assertion :- Branching descent and Natural selection are the two key concepts of Darwinian theory of evolution. Reason :- Darwinism is able to explain the presence of vestigeal organ.

Assertion: Many plants can reproduce asexually as well as sexually in nature. Reason: Phenomenon of parthenogenesis is also found in plants.

Assertion : When yelow bodied, white eyed Drosophila females were hybridised with brown-bodied, red eyeed males , and F_(1) progeny was intercrossed, F_(2) ratio deviated from 9:3:3:1 Reason : When two genes in a dihybrid are on same chromosome, the proportion of parental gene combinations are much higher than the non-parental type

Assertion :-Analogous organs show common ancestory. Reason :-Analogous organ show evolution.

Assertion: Evolution is not a directed process in sense of determinism. Reason: Evolution is a stochastic process based on chance events in nature and chance mutation in the organisms.

Assertion : Plant-animal interactions do not generaly involve co-evolution of the mutualist organisms. Reason : Evolution of the plants and animals can never go side by side.

Assertion : The RNAi can be introduced in an organism by insertion of gene encoding complementary RNA only Reason : There are no methods by which in vitro synthesised complementary RNA can be inserted in an organism to induce RNAi (RNA interference)

Assertion: Global water cycle does not involve the living organisms. Reason: In global water cycle. Water circulates between hydrosphere and atmosphere.

ICSE-REPRODUCTION IN ORGANISMS-COMPETITION CORNER OBJECTIVE TYPE QUESTIONS ((B) Assertion and Reason Type Questions) (Fopr AIIMS aspirants)
  1. Assertion: Asexual reproduction does not bring any genetic change in p...

    Text Solution

    |

  2. Assertion: Middle piece of the sperm is called its powerhouse'. Reas...

    Text Solution

    |

  3. Assertion: Air layering is applied to woody shrubs and trees. Reaso...

    Text Solution

    |

  4. Assertion: Many plants can reproduce asexually as well as sexually in ...

    Text Solution

    |

  5. Assertion: Amoeba is known as immortal. Reason: Amoeba has rigid pro...

    Text Solution

    |

  6. Assertion: In honeybee, males are always haploid. Reason: They are der...

    Text Solution

    |

  7. Assertion: Gemmules are asexual bodies found in sponges. Reason: The...

    Text Solution

    |

  8. Assertion: In oviparous animals, zygote develops outside the body of f...

    Text Solution

    |

  9. Assertion: Visit of insects on flowers helps in pollination. Reason:...

    Text Solution

    |

  10. Assertion: Parthenogenesis does not contribute to organic evolution. ...

    Text Solution

    |

  11. Assertion: Reproduction and death are the two essential processes on t...

    Text Solution

    |

  12. Assertion: Young ones of oviparous animals are at a greater risk. Re...

    Text Solution

    |

  13. Assertion: In an organism, male gametes are always produced in large n...

    Text Solution

    |

  14. Assertion: Gametes are always haploid. Reason: A haploid parent body...

    Text Solution

    |

  15. Assertion: Senescent phase of life ultimately leads to death. Reason...

    Text Solution

    |

  16. Assertion: Senescence is the time when age associated defects are mani...

    Text Solution

    |