Home
Class 12
BIOLOGY
A single gene is usually seen to exhibit...

A single gene is usually seen to exhibit a single phenotypic expression. Pleiotropic genes, however, can impact multiple phenotypic expressions.
Which of these genetic disorders have multiple phenotypic expressions being impacted by a change in a single gene?

A

thalassemia

B

haemophilia

C

phenylketonuria

D

Down's syndrome

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • Additional Practice Questions

    CBSE MODEL PAPER|Exercise Question|44 Videos

  • SAMPLE PAPER 2022

    CBSE MODEL PAPER|Exercise Questions in lieu of diagram based questions for VI candidates (Section - C) |11 Videos

Similar Questions

Explore conceptually related problems

The ability of a gene to have multiple phenotypic effects is known as

Which gene is connected with multiple phenotypes?

Genes with multiple phenotypic effects are known as

A single gene mutation affecting more than one phenotype is called

(A) Pleiotropic genes have multiple phenotypic effect (B) Multiple alleles exhibit same phenotypic expression. (C ) Polygenes exhibit continuous variation.

Pleiotropy is the effect of X = gene(s) on Y = ……………….. phenotypic expression(s).

The gene which affect more than one phenotype called pleiotropic gene.

Genes exhibting multiple effects phenotype are known as

CBSE MODEL PAPER-PRACTICE PAPER 2022-MULTIPLE CHOICE QUESTION
  1. An anther is made up of the following major parts: lobes, theca and sp...

    Text Solution

    |

  2. Which of the following statements about genes responsible for X linked...

    Text Solution

    |

  3. A single gene is usually seen to exhibit a single phenotypic expressio...

    Text Solution

    |

  4. Consider the pedigree chart given below. Since only males and off...

    Text Solution

    |

  5. Which of these is/are function(s) of placenta? i. production of horm...

    Text Solution

    |

  6. Consider a test cross between a homozygous recessive yellow seeded pla...

    Text Solution

    |

  7. Given below are some statements about chromosomal disorders. 1: The...

    Text Solution

    |

  8. In the image depicting a level of the packaging of the DNA helix, iden...

    Text Solution

    |

  9. Which of these statements about seed dormancy are TRUE? 1: Seeds do...

    Text Solution

    |

  10. Consider the following genetic code: Which among the following wo...

    Text Solution

    |

  11. Codons UCA, UCG, UCU, UCC, AGC, and AGU code for the amino acid serine...

    Text Solution

    |

  12. The average Guanine content in yeast is found to be 18%. Which of t...

    Text Solution

    |

  13. If dark skin colour is controlled by dominant genes MNO and its recess...

    Text Solution

    |

  14. Two statements are given - one labelled Assertion (A) and the other la...

    Text Solution

    |

  15. Two statements are given - one labeled Assertion (A) and the other lab...

    Text Solution

    |

  16. Two statements are given - one labeled Assertion (A) and the other lab...

    Text Solution

    |

  17. Two statements are given - one labeled Assertion (A) and the other lab...

    Text Solution

    |

  18. Globozoospermia is a rare condition that affects only males. It is cha...

    Text Solution

    |

  19. Identify the correct sequence of processes that happen in an adult fem...

    Text Solution

    |

  20. Study the human karyotype given below. Which among the following...

    Text Solution

    |