Home
Class 12
BIOLOGY
A mother is afflicted by Down's syndrome...

A mother is afflicted by Down's syndrome caused by an extra copy of chromosome 21 Father is normal percentage of offspring affected by the disorder would be

A

1

B

0.75

C

0.5

D

0.25

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • NTA NEET TEST 111

    NTA MOCK TESTS|Exercise BIOLOGY|90 Videos

  • NTA NEET TEST 22

    NTA MOCK TESTS|Exercise BIOLOGY|45 Videos

Similar Questions

Explore conceptually related problems

A mother is afflicted by Down's syndorme causerd by an extra copy of chromosome 21 Father is normal .percentage of offspring affected by the disorder would be

Down's syndrome in caused by an extera copy of chromosome number 21 . What percentage of offspring is produced by an affected mother and a normal father .

Down's syndrome is caused by an extra copy of chromosome number 21. What percentage of offspring produced by an affected mother and a normal father would be affected by this disorder

Down syndrome is caused by an extra copy of chromosome number 21. What percentage of offspring prodused by an affected mother and a normal father would be affected by this disorder?

Down's syndrome is caused due to __________of chromosomes.

Down's syndrome is due to trisomy of 21st chromosome caused by

Who reported that Down's syndrome is due to extra 21st chromosome

Which extra chromosome causes Klinefelter's syndrome?

Which disorder is caused in man by the presence of one extra sex chromosome?

An individual with Down's syndrome has________________ copies of 21^(st) chromosome.

NTA MOCK TESTS-NTA NEET TEST 112-BIOLOGY
  1. Choose the wrong statement from the following.

    Text Solution

    |

  2. Which of the following features is not related to the cockroach?

    Text Solution

    |

  3. A mother is afflicted by Down's syndrome caused by an extra copy of ch...

    Text Solution

    |

  4. Select the incorrect statement from the following.

    Text Solution

    |

  5. An example of gene therapy is

    Text Solution

    |

  6. Which set of drugs is incorrectly matched with its group ?

    Text Solution

    |

  7. Who dedicates the type of animals that can be supported in any area?

    Text Solution

    |

  8. Which of these statements is not true?

    Text Solution

    |

  9. Read the following statements (A - E) and answer the question followin...

    Text Solution

    |

  10. Which one of the following is an example of cleistogamy?

    Text Solution

    |

  11. Observe the given diagram of a connective tissue identify it which of ...

    Text Solution

    |

  12. Which intruterine event is incorrectly matched with its time of occurr...

    Text Solution

    |

  13. The process in which the fitness of one species (measured in terms of ...

    Text Solution

    |

  14. Which of these is incorrect about oogenesis?

    Text Solution

    |

  15. Identify the step which belong to the Kreb's cycle.

    Text Solution

    |

  16. During succession , in the successive seral stages , there is a/an

    Text Solution

    |

  17. At least of sperms should have normal shape for normal fertility.

    Text Solution

    |

  18. Choose the correct statement/s about amphibolic pathways.

    Text Solution

    |

  19. T.W. Engelmann split the light inot its components using a

    Text Solution

    |

  20. Select the correct statement.

    Text Solution

    |