Home
Class 12
BIOLOGY
State the cause and symptoms of Down syn...

State the cause and symptoms of Down syndrome. Name and explain the event responsible for causing this syndrome.

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • PRINCIPLES OF INHERITANCE AND VARIATION

    ICSE|Exercise PREVIOUS YEAR.S BOARD PAPER QUESTIONS (VERY SHORT ANSWER TYPE QUESTIONS) |8 Videos

  • PRINCIPLES OF INHERITANCE AND VARIATION

    ICSE|Exercise PREVIOUS YEAR.S BOARD PAPER QUESTIONS ( SHORT ANSWER TYPE-I QUESTIONS) |3 Videos

  • PRINCIPLES OF INHERITANCE AND VARIATION

    ICSE|Exercise PRACTICE QUESTIONS ( SHORT ANSWER TYPE-II QUESTIONS)|29 Videos

  • ORGANISMS AND POPULATIONS

    ICSE|Exercise COMPETITION CORNER (ASSERTION AND REASON TYPE QUESTIONS)|22 Videos

  • QUESTION PAPER 2022 TERM 1

    ICSE|Exercise MULTIPLE CHOICE QUESTIONS|45 Videos

Similar Questions

Explore conceptually related problems

Down's syndrome is an example of

Down's syndrome is due to

Down's syndrome is due to

Mention a cause and symptom of asthma.

Down 's syndrome is due to

Pollutant responsible for causing phaeophytization is

Explain Down.s syndrome.

Down's syndrome is related to

Reason for trisomy in down's syndrome

Which is not a symptom of Cushing's syndrome ?

ICSE-PRINCIPLES OF INHERITANCE AND VARIATION-PRACTICE QUESTIONS ( LONG ANSWER TYPE QUESTIONS)
  1. In an experiment on sweet pea (Lathyrus odoratus), a cross was made be...

    Text Solution

    |

  2. Differentiate between Testcross and Reciprocal cross

    Text Solution

    |

  3. Differentiate between genotype and phenotype.

    Text Solution

    |

  4. Differentiate between Epistasis and Dominance

    Text Solution

    |

  5. Differentiate between Codominance and Incomplete dominance

    Text Solution

    |

  6. Explain in detail the meaning of the phenotypic ratio 9 : 3:3 : 1 in t...

    Text Solution

    |

  7. Define epistasis and give one example of this phenomenon. How is the p...

    Text Solution

    |

  8. In Mendel's breeding experiment on garden pea, the F2 generation yiel...

    Text Solution

    |

  9. Explain the law of independent assortment. Give example to show how th...

    Text Solution

    |

  10. Write short notes on: Pleiotropy

    Text Solution

    |

  11. Write short notes on: Allele

    Text Solution

    |

  12. List the different ways by which mutations alter the structure of the ...

    Text Solution

    |

  13. Show by a series of diagrammatic sketches how at the end of meiosis II...

    Text Solution

    |

  14. Why are genetic variability essential for a species to survive? Name t...

    Text Solution

    |

  15. Write an essay on chromosomal aberrations, giving their cytological an...

    Text Solution

    |

  16. Describe the phenomenon of epistasis as found in the flower colour of ...

    Text Solution

    |

  17. How do variations arise in sexually reproducing organisims? Explain br...

    Text Solution

    |

  18. Mendel crossed true-breeding tall pea plants having purple flowers wit...

    Text Solution

    |

  19. State the cause and symptoms of Down syndrome. Name and explain the ev...

    Text Solution

    |

  20. Why is thalassemia is categorised as a mendelian disorder? Write the s...

    Text Solution

    |