Home
Class 12
BIOLOGY
If a mother and father both have one mut...

If a mother and father both have one mutant gene for a disease with an autosomal dominant inheritance, what is their risk of having an affected child?

A

0

B

0.25

C

0.5

D

0.75

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • Plant Physiology

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|91 Videos
  • Protista

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|5 Videos

Similar Questions

Explore conceptually related problems

Which of the following diseases are caused by autosomal dominant genes?

If both parents are carriers for thalassaemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child?

If both the parents are carriers for thalassemia which is an autosomal recessive disorder what are fthe chances of pregnancy resulting in an affected child

If both parents are carriers for thalessemia, which is ai:, autosomal recessive disorder, what are the chan~e~ pregnancy resulting in an affected child?

A pedigree is shown below for a disease that is autosomal dominant. What would be the genetic make up of the first generation ?

If both the parents are carriers of autosomal r recessive disorder thalassemia , what are the chances of pregnancy resulting in an affected child

A man is affected with brachydactyly, an autosomal dominant trait that cause shortening of several fingers. What is the risk that the man's first child will have brachydactyly ?

TRUEMAN BIOLOGY-PRINCIPLES OF INHERITANCE AND VARIATIONS -MCQs
  1. What is true for thalassaemia?

    Text Solution

    |

  2. In X-linked recessive inheritance, why does the disease gene often app...

    Text Solution

    |

  3. If a mother and father both have one mutant gene for a disease with an...

    Text Solution

    |

  4. Which on the four couples chaiming tha baby with O+ blood type are pos...

    Text Solution

    |

  5. The weight of fruit in a plant is determined by the number of dominant...

    Text Solution

    |

  6. A plant of "F"(1) generation with genotype AABbCC. On selfing of this ...

    Text Solution

    |

  7. In a population of 2000 individuals, 900 individuals are suffering fro...

    Text Solution

    |

  8. In an organism, 4n=100. the haploid and monoploid number of chromosome...

    Text Solution

    |

  9. In man, nucleolar organisers are not located in which of the following...

    Text Solution

    |

  10. A dihybrid test cross ratio for two linked genes in a hybrid is

    Text Solution

    |

  11. Colour blindness is characterized by

    Text Solution

    |

  12. In human beings, sex determination has recently been studied in great ...

    Text Solution

    |

  13. Nucleosomes give beaded appearance to chromosomes. They help in packin...

    Text Solution

    |

  14. The two nucleosomes are joined by linker DNA to which is attached

    Text Solution

    |

  15. Which among the following histone proteins is least conserved in cours...

    Text Solution

    |

  16. In the region of Balbiani rings (puffs), DNA strand is uncoiled. It he...

    Text Solution

    |

  17. Salivary glands chromosome were discovered by Balbi- ani (1881) from t...

    Text Solution

    |

  18. In which stage, you will find lampbrush chromosomes in oocyte of frog?

    Text Solution

    |

  19. Polytene chromosome becomes giant due to

    Text Solution

    |

  20. The major amino acids in histone protein of chromosomes are

    Text Solution

    |