Home
Class 12
BIOLOGY
Define epistasis and give one example of...

Define epistasis and give one example of this phenomenon. How is the phenotypic ratio of `F_2` generation in epistasis different from the normal 9:3:3:1 ratio?

A

One pair of genes can completely mask, the expression of anoter pair of genes

B

One pair of genes independently controls a particular phenotype

C

One pair of genes enhances the phenotypic expression of another pair of genes

D

Many genes collectively control a particular phenotype

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • GENETICS & MOLECULAR BASIS OF INHERITANCE AND MUTATION

    ALLEN|Exercise EXERCISE-II (PREVIOUS YEAR QUESTIONS|104 Videos
  • GENETICS & MOLECULAR BASIS OF INHERITANCE AND MUTATION

    ALLEN|Exercise EXERCISE-III (ANALYTICAL QUESTIONS|85 Videos
  • GENETICS & MOLECULAR BASIS OF INHERITANCE AND MUTATION

    ALLEN|Exercise DEGINNERS BOX-8|5 Videos
  • GENETICS

    ALLEN|Exercise Question|58 Videos
  • GENETICS (PRINCIPLES OF INHERITANCE AND VARIATION) (MOLECULAR BASIS OF INHERITANCE)

    ALLEN|Exercise Question|53 Videos

Similar Questions

Explore conceptually related problems

In case of incomplete dominance, what will be the phenotypic ratio of F_2 generation?

The phenotypic ratio in the F_2 generation of dihybrid cross is

The monohybrid genotypic ratio 1:2:1 in F_(2) generation indicates

Phenotypic and genotypic ratio in F_(2) generation in incomplete dominance is

Select the correct match (w.r.t dihybrid phenotypic ratio in F_(2) generation)

Give the Phenotypic and Genotypic ratio of the F_1 " and " F_2 generation.

On selfing a plant of F_(1) -generation with genotype "AaBbCC", the phenotypic ratio in F_(2) -generation will be

Which one of the following crosses shows phenotypic ratio of 3:1?

On selfing a plant of F_(1) -generation with genotype "AABbCC", the genotypic ratio in F_(2) generation will be

In case of co-dominance the monohybrid ratio of phenotypes in F_(2) generation is :-

ALLEN-GENETICS & MOLECULAR BASIS OF INHERITANCE AND MUTATION-EXERCISE-I (CONCEPTUAL QUESTIONS)
  1. In Mirabills jalapa , the homozygous white(rr) and Red (RR) flower col...

    Text Solution

    |

  2. A child with mother of A group and father of AB group, will not have t...

    Text Solution

    |

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

    Text Solution

    |

  4. Possible blood groups of children born to parents having A and AB gr...

    Text Solution

    |

  5. A man with blood group B marries a women with blood group A and their ...

    Text Solution

    |

  6. A child with mother of 'A' blood group and father of 'AB' blood group ...

    Text Solution

    |

  7. If mother has blood group B, fathe has A group, the offspring will be ...

    Text Solution

    |

  8. Two nonallelic genes produces the new phenotype when present together ...

    Text Solution

    |

  9. Sickle cell anemia is

    Text Solution

    |

  10. Both the alleles express in a heterozygote when they are

    Text Solution

    |

  11. In the inheritance of flower colour in dog flower plant, the F(1) had ...

    Text Solution

    |

  12. The three different alleles of human ABO blood types will produce how ...

    Text Solution

    |

  13. Other than pea plants it was found that sometimes the F(1) had phenoty...

    Text Solution

    |

  14. Which of the following material is good to understant incomplete domin...

    Text Solution

    |

  15. Find out the correct match-

    Text Solution

    |

  16. Which of the following condition is true for codominance-

    Text Solution

    |

  17. Which of the following is a good example of multiple allele-

    Text Solution

    |

  18. In sickle cell anaemia-

    Text Solution

    |

  19. In a cross between true red flowered (RR) and true breeding white flow...

    Text Solution

    |

  20. In case of ABO blood grop allele I^(A)and I^(B) if present together th...

    Text Solution

    |