Home
Class 12
BIOLOGY
A colourblind man marries a woman with n...

A colourblind man marries a woman with normal sight who has no history of colorur blindness in her family. What is the probability of their grandsons being colourblind ?

A

`0.5^@`

B

`1^@`

C

Nil

D

`0.25^@`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • SET_03

    MODERN PUBLICATION|Exercise EXERCISE|26 Videos

  • SEXUAL REPRODUCTION IN FLOWERING PLANT

    MODERN PUBLICATION|Exercise EXERCISE|193 Videos

Similar Questions

Explore conceptually related problems

If a colourblind woman marries a normal visioned man, their sons will be:

Father of a child is colourblind and mother is carrier for colourblindness, the probability of the child being colour blind is

A normal visioned man, whose father was colourblind, marries a woman those father was also colourblind. They have their first child as a daughter. What are the chances that this child would be colurblind ?

If a colour blind man marries a normal woman,their children will be ----

A normal visioned woman, whose father is colourblind, marries a normal visioned man. What would be probability of her sons and daughters to be colourblind ? Explain with the help of a pedigree chart.

If a normal man marries a carrier woman for colour blindness, their sons may be ----

A man, whose father was colourblind, marries a women who had a colourblind mother normal father. What percentage of male children of this couple will be colourblind ?

MODERN PUBLICATION-SEX DETERMINATION-EXERCISE
  1. A normal visioned man, whose father was colourblind, marries a woman t...

    Text Solution

    |

  2. A man, whose father was colourblind, marries a women who had a colourb...

    Text Solution

    |

  3. A colourblind man marries a woman with normal sight who has no history...

    Text Solution

    |

  4. Which of the following most appropriately describes haemophilia ?

    Text Solution

    |

  5. A disease caused by autosomal primary non-disjunction is :

    Text Solution

    |

  6. X and Y- chromosomes are called :

    Text Solution

    |

  7. Which one is a sex-linked disorder?

    Text Solution

    |

  8. A haemophilic man marries a normal homozygous woman. What is the proba...

    Text Solution

    |

  9. A fruitfly exhibiting both male and female trait is

    Text Solution

    |

  10. A haemophilic man marries a normal homozygous woman. What is the proba...

    Text Solution

    |

  11. Genes located on Y-chromosome are

    Text Solution

    |

  12. A colourblind person cannot distinguish

    Text Solution

    |

  13. Which chromosome carries the haemophilic genes ?

    Text Solution

    |

  14. Red-green colour blindness in man is.

    Text Solution

    |

  15. Sex-linked characters are

    Text Solution

    |

  16. Which gene is present in the Y-chromosome that codes for the protein T...

    Text Solution

    |

  17. What type of sex determination seen in birds ?

    Text Solution

    |

  18. When the ratio of X/A=0.67 in genic balance theory, which type of sex ...

    Text Solution

    |

  19. Which type of sex-determination is found in Bonellia?

    Text Solution

    |

  20. In a person with Turner syndrome, the number of X-chromosome is

    Text Solution

    |