Home
Class 10
BIOLOGY
Explain how, offspring and parents of or...

Explain how, offspring and parents of organisms reproducing sexually have the same number of chromosomes?

Text Solution

Verified by Experts

Gamete formation is the first step in sexual reproduction. Number of chromosomes is halved during gamete formation. As a result, the number of chromosomes in gamete is half the number of chromosomes in both male and female gametes. Since these two gametes fuse during fertilization, the original number of chromosomes (as in the parent) is restored in the offspring. This shows how offspring and parents of organisms reproducing sexually have the same number of chromosomes.
Promotional Banner

Topper's Solved these Questions

  • REPRODUCTION

    OSWAL PUBLICATION|Exercise BOARD CORNER (Very Short Answer Type Question)|3 Videos

  • REPRODUCTION

    OSWAL PUBLICATION|Exercise BOARD CORNER (Short Answer Type Question)|16 Videos

  • REPRODUCTION

    OSWAL PUBLICATION|Exercise NCERT EXEMPLAR (MULTIPLE CHOICE QUESTIONS)|27 Videos

  • OUR ENVIRONMENT

    OSWAL PUBLICATION|Exercise BOARD CORNER ( SHORT ANSWER TYPE QUESTIONS)|8 Videos

  • SUSTAINABLE MANAGEMENT OF NATURAL RESOURCES

    OSWAL PUBLICATION|Exercise CREATING BASED QUESTIONS|3 Videos

Similar Questions

Explore conceptually related problems

Both males and females have same number of chromosomes in

From the internet, gather information about the chromosome numbers of five animals and five plants. Correlate the number with the size of organism and answer the following questions. (a) Do larger organisms have more number of chromosomes/cells? (b) Can organism with fewer chromosomes reproduce more easil than orgamsms with more number of chromosomes? (c) More the number of chromosomes/cells greater is the DNA content. Justify.

OSWAL PUBLICATION-REPRODUCTION-NCERT EXEMPLAR (SHORT ANSWER QUESTIONS)
  1. Can you consider cell division as a type of reproduction in unicellula...

    Text Solution

    |

  2. What is a clone? Why do offsprings formed by asexual reproduction exhi...

    Text Solution

    |

  3. Explain how, offspring and parents of organisms reproducing sexually h...

    Text Solution

    |

  4. Colonies of yeast fail to multiply in water, but multiply in sugar sol...

    Text Solution

    |

  5. Why does bread mould grow profusely on a moist slice of bread rather t...

    Text Solution

    |

  6. Give two reasons for the appearance of variations among the progeny fo...

    Text Solution

    |

  7. Would a Planaria cut vertically into two halves regenerate into two in...

    Text Solution

    |

  8. From the internet, gather information about the chromosome numbers of ...

    Text Solution

    |

  9. From the internet, gather information about the chromosome numbers of ...

    Text Solution

    |

  10. From the internet, gather information about the chromosome numbers of ...

    Text Solution

    |

  11. In tobacco plant, the male gametes have twenty four chromosomes. What ...

    Text Solution

    |

  12. Why cannot fertilisation take place in flowers if pollination does not...

    Text Solution

    |

  13. Is the chromosome number of zygote, embryonal cells and adult of a par...

    Text Solution

    |

  14. Where is the zygote located in the flower after fertilisation?

    Text Solution

    |

  15. Reproduction is linked to stability of population of a species. Justif...

    Text Solution

    |

  16. How are general growth and sexual maturation different from each other...

    Text Solution

    |

  17. Trace the path of sperm during ejaculation and mention the gland and t...

    Text Solution

    |

  18. What changes are observed in the uterus if fertilisation does not occu...

    Text Solution

    |

  19. What changes are observed in the uterus subsequent to implantation of ...

    Text Solution

    |

  20. What are the benefits of using mechanical barriers during sexual act?

    Text Solution

    |