Home
Class 12
BIOLOGY
During meiosis, a microscope mother cell...

During meiosis, a microscope mother cell has 12 bivalents, the number of chromosomes in its pollen gains will be:

A

12

B

24

C

6

D

18

Text Solution

Verified by Experts

The correct Answer is:
A
If microspore mother cells has 12 bivalents (means 12 paris of homologus chromosomes or 24 chromosomes), the spores (pollens) which are haploid will have only 12 chromosomes (n=12)
Promotional Banner

Topper's Solved these Questions

  • SEXUAL REPRODUCTION IN FLOWERING PLANTS

    GRB PUBLICATION|Exercise Microgametogenesis|24 Videos

  • SEXUAL REPRODUCTION IN FLOWERING PLANTS

    GRB PUBLICATION|Exercise Megagametogenesis|36 Videos

  • REPRODUCTIVE HEALTH

    GRB PUBLICATION|Exercise Assertion -Reason Type Questions|36 Videos

  • THE GENETIC MATERIAL

    GRB PUBLICATION|Exercise DNA REPLICATION|136 Videos

Similar Questions

Explore conceptually related problems

During meiosis I, chromosome number

During meiosis-I, the number of chromosomes is

When a cell undergoes meiosis, the number of chromosomes in daughter cells will be

Wheat root cells have 42 chromosomes. The number of chromosomes in a cell of pollen grain is

The number of bivalents is half the number of total chromosomes.

The endosperm cells in an angiospermic plant has 18 chromosomes, the number of chromosomes in its root cells will be ……….. .

In meiosis chromosome number becomes

In maize , a meiocyte has 20 chromosomes . What will be the number of chromosomes in its vegetative of pollen grain and nucellus cell of ovule respectively?

GRB PUBLICATION-SEXUAL REPRODUCTION IN FLOWERING PLANTS-NCERT Corner
  1. During meiosis, a microscope mother cell has 12 bivalents, the number ...

    Text Solution

    |

  2. To a biologist, flowers are:

    Text Solution

    |

  3. A typical angiosperm anther is:

    Text Solution

    |

  4. The anther is a four-sided structure consisting of:

    Text Solution

    |

  5. The microsporangia develop further and become:

    Text Solution

    |

  6. The pollen grains represents the:

    Text Solution

    |

  7. The hard outer layer of pollen grains called exine is made up of:

    Text Solution

    |

  8. Prollen grains are well preserved as fossils because of the presence o...

    Text Solution

    |

  9. Which of the following has been claimed to increase the performance of...

    Text Solution

    |

  10. Pollen grains lose viabiliyt within 30 minutes of their release in:

    Text Solution

    |

  11. Arising from the placenta are the megasporangia, commonly called:

    Text Solution

    |

  12. Opposite the micropylar end, representing the basal part of the ovule ...

    Text Solution

    |

  13. In embryo sac, three cells are grouped together at the micropylar end ...

    Text Solution

    |

  14. The only type of pollination which during pollination brings genetical...

    Text Solution

    |

  15. Hair present on the cob of corn are Or Long filamentous threads pr...

    Text Solution

    |

  16. The condition which prevents both autogamy and geitongamy is:

    Text Solution

    |

  17. Floral rewards providing safe places to lay eggs occur in:

    Text Solution

    |

  18. The central cell of embryo sac after triple fusion becomes:

    Text Solution

    |

  19. The tissue in which cells are filled with reserve food materials and a...

    Text Solution

    |

  20. The mature embryo in angiosperms is:

    Text Solution

    |

  21. In grass family, the cotyledon is called:

    Text Solution

    |