Home
Class 12
BIOLOGY
(A) : A spore is a small , microsocpic ...

(A) : A spore is a small , microsocpic , unicellular reproductive body.
(R) : Spores are produced by bacteria and protozoa.

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 but (R) is true

D

If both (A) and (R) are false.

Text Solution

Verified by Experts

The correct Answer is:
b
Promotional Banner

Topper's Solved these Questions

  • REPRODUCTIVE HEALTH

    GRB PUBLICATION|Exercise Assertion -Reason Type Questions|36 Videos
  • REPRODUCTION IN ORGANISMS

    GRB PUBLICATION|Exercise EXEMPLAR PROBLEMS|33 Videos
  • SEXUAL REPRODUCTION IN FLOWERING PLANTS

    GRB PUBLICATION|Exercise NCERT Corner|23 Videos

Similar Questions

Explore conceptually related problems

Swarm spores are produced by

Diploid spores are produced only by

Sexual spores produced by basidiomycetes are

In gymnosperms, hapoid spores are produced by :

Morphologically different types of spores are produced by

Sexual spores are exogenously produced in

Spore producing body of a cellular slime mould is

Describe reproduction by spores in Rhizopus.

Name the asexual reproductive spores in fungi.

A spore producing plant is

GRB PUBLICATION-REPRODUCTIVE HEALTH-Assertion -Reason Type Questions
  1. (A) : Each and every organism is capable to live only for a limited pe...

    Text Solution

    |

  2. (A): Each organism has adopted its own mechanism of reproduction. (R...

    Text Solution

    |

  3. (A) : A spore is a small , microsocpic , unicellular reproductive bod...

    Text Solution

    |

  4. (A) : Sexual reproduction involves the formation and union of two game...

    Text Solution

    |

  5. (A): A haploid parent products gametes by meiotic divi-soin. (R) Maj...

    Text Solution

    |

  6. (A): In majority of algae, fishes and amphibians external fertilizatio...

    Text Solution

    |

  7. (A): Sexually reproducing organisms begin life as a single cell. (R)...

    Text Solution

    |

  8. (A) : Parthenogenesis means the growth and development of an egg witho...

    Text Solution

    |

  9. (A) : Lower plants usually reproduce by asexual means. (R) : It help...

    Text Solution

    |

  10. (A): Progressive degeneration of sexuality is a primitive character in...

    Text Solution

    |

  11. (A) : Accessory organs of the flowers are sterile parts. (R) : They ...

    Text Solution

    |

  12. (A) : Pollens are produced in microsporangia after meiotic divison. ...

    Text Solution

    |

  13. (A) : Exine of pollen is chiefly made up of sporopollenin. (R): Spor...

    Text Solution

    |

  14. (A) : Ovule is an integumented megasporangium . (R) It does not dehi...

    Text Solution

    |

  15. (A) : Incampylotropous type the body of ovule is horseshoe shaped. (...

    Text Solution

    |

  16. (A) : Cleistogamous flowers are ususally self pollinated. (R) : Thes...

    Text Solution

    |

  17. (A) : All graminaceous flowers are always wing pollinated. (R) : The...

    Text Solution

    |

  18. (A) : Insect visit flowers to collect honey. (R): Attraction of flow...

    Text Solution

    |

  19. (A) : Mammalian ova produces an emzyme hyaluronidase. (R): This enzy...

    Text Solution

    |

  20. (A) : Testes of mammals are present outside abdomnial cavity in scrota...

    Text Solution

    |