Home
Class 12
BIOLOGY
Failure of cytokinesis after telophase s...

Failure of cytokinesis after telophase stage of cell devision results in an increase in a whole set of chromosomes in an organism. The phenomenon is called as

A

polyploidy

B

aneuploidy

C

haploidy

D

diploidy

Text Solution

Verified by Experts

The correct Answer is:
A
Polyploidy is the phenomenon of having more than two genomes or two sets of chromosmes. It occurs in nature due to the failure of chromosomes to separate at the time of anaphase either due to non-disjunction or due to non-formation of spindle. Cytokinesis does not occur after telophase stage leading to polyploidy.
Promotional Banner

Topper's Solved these Questions

  • PRACTICE PAPERS

    NCERT FINGERTIPS|Exercise Practice paper|150 Videos

  • REPRODUCTION IN ORGANISM

    NCERT FINGERTIPS|Exercise Reproduction In Organism|138 Videos

Similar Questions

Explore conceptually related problems

Chromosomal disorders are caused due to absence or excess or abnormal arrangement of one or more chromosomes. Failure of segregation of chromatids during cell division cycle results in the gain or loss of a chromosome, and is called aneuploidy. Failure of cytokinesis after telophase stage of cell division results in an increase in a whole set of chromosomes in an organism and, this is known as polyploidy. There are a total number of .......... pairs of autosomes in a normal human cell.

Chromosomal disorders are caused due to absence or excess or abnormal arrangement of one or more chromosomes. Failure of segregation of chromatids during cell division cycle results in the gain or loss of a chromosome, and is called aneuploidy. Failure of cytokinesis after telophase stage of cell division results in an increase in a whole set of chromosomes in an organism and, this is known as polyploidy. Turner's syndrome is caused due to ............... of one of the X chromosome.

Presence of whole sets of chromosomes is called …………. .

Failure of segregation of chromatids during cell division results in the gain or loss of chromososmes, this is called as

A meristem, in which the cell division takes place in all planes resulting in an increase in volume is called

Presistent pesticides such as DDT pass into food chain and increase in amount per unit weight of organism due to their accumulation in fat. This phenomenon is called

NCERT FINGERTIPS-PRINCIPLES OF INHERITANCE & VARIATION-Principles Of Inheritance & Variation
  1. Failure of segregation of chromatids during cell division results in t...

    Text Solution

    |

  2. Match column I with column II and select the correct option from the g...

    Text Solution

    |

  3. Failure of cytokinesis after telophase stage of cell devision results ...

    Text Solution

    |

  4. Match column I with colimn II and select the correct option from the ...

    Text Solution

    |

  5. Klinefelter's syndrome is characterised by a karyotype of

    Text Solution

    |

  6. Which of the following is mismatched pair of disease and its related ...

    Text Solution

    |

  7. Match column I with column II and select the correct option from the g...

    Text Solution

    |

  8. Due to nondisjunction of chromosomes during spermatogensis, some sperm...

    Text Solution

    |

  9. Refer to the given figure representing karyotype of individual who inf...

    Text Solution

    |

  10. Find out the mismatched pair

    Text Solution

    |

  11. Match column I with column II and select the correct option from the g...

    Text Solution

    |

  12. In human, attached earlobes are a dominant feature over free earlobes...

    Text Solution

    |

  13. A pedigree is shown below for a disease that is autosomal dominant. Wh...

    Text Solution

    |

  14. Study the two cases carefully, What would be the correct interpretat...

    Text Solution

    |

  15. Males of silkworm Bombyx more are known to produce more silk per unit...

    Text Solution

    |

  16. The allele for pea comb (P) in chickens in completely dominants to the...

    Text Solution

    |

  17. All gens located on the same chromosome

    Text Solution

    |

  18. Conditions of a karyotype 2n pm 1 and 2n pm 2 are called

    Text Solution

    |

  19. Distance between the genes and percentage of recombination shows

    Text Solution

    |

  20. If a genetic disease is transferred from a phenotypically normal but c...

    Text Solution

    |