Home
Class 12
BIOLOGY
In prophase, chromosomes shorten and thi...

In prophase, chromosomes shorten and thicken due to

A

1.microtubules

B

2.coiling of chromosomes

C

3.disappearance of microfilament

D

4.formation of proteins

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • BREATHING AND EXCHANGE OF GASES

    TRUEMAN BIOLOGY|Exercise MULTIPLE CHOICE QUESTIONS|199 Videos

  • Cell Reproduction

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|15 Videos

Similar Questions

Explore conceptually related problems

During prophase, chromosomes are

X-chromosome is

Y-chromosome is

XY-chromosomes are

What is chromosome?

In metaphase I chromosomes are in

What are chromosome?

In leptotene, the chromosomes are

Homologous chromosomes are

What is sex chromosome?

TRUEMAN BIOLOGY-CELL CYCLE AND CELL DIVISION-MULTIPLE CHOICE QUESTIONS
  1. Nucleolus disappears in

    Text Solution

    |

  2. Poleward movement of dyads occurs during

    Text Solution

    |

  3. In prophase, chromosomes shorten and thicken due to

    Text Solution

    |

  4. Meiosis II leads to

    Text Solution

    |

  5. Cell becomes refractive and viscous first during

    Text Solution

    |

  6. lnterzonal fibres appear in

    Text Solution

    |

  7. Diploid chromosome number being 8, what shall be the number of chromat...

    Text Solution

    |

  8. Aster is

    Text Solution

    |

  9. At diakinesis, a meiocyte has ten pairs of chromosomes. The chromosome...

    Text Solution

    |

  10. During regeneration, following takes place (a) cell division (b) cel...

    Text Solution

    |

  11. The stage at which cytokinesis begins in plant cells is

    Text Solution

    |

  12. Which of the following is part of mitosis in cells of seed plants ?

    Text Solution

    |

  13. The microtubules from opposite poles of the spindle get attached to th...

    Text Solution

    |

  14. Metaphase II of meiosis is just like metaphase of mitosis except that ...

    Text Solution

    |

  15. A diploid cell has 2n = 4. If this cell divides by mitosis, how many t...

    Text Solution

    |

  16. Middle lamella starts forming during 1. I-phase 2. Late Metaphase 3...

    Text Solution

    |

  17. Phragmoplast is precursor of 1. leucoplast 2. chloroplast 3. spindl...

    Text Solution

    |

  18. Each chromosome at anaphase stage of bone marrow cell in our body has

    Text Solution

    |

  19. N/C ratio after cell division

    Text Solution

    |

  20. The number of bivalents in Prophase I of meiosis are 10. How many chro...

    Text Solution

    |