Home
Class 12
BIOLOGY
A polygenic trait is contrulled by 3 gen...

A polygenic trait is contrulled by 3 genes A,B and C . In a cross AaBbCc and AaBbCc, the phenotypic ratio of the offsperings was observed as `1:6:x:2:x:6:1`. What is the possible value of x?

A

3

B

7

C

15

D

25

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • GENETIC BASIS OF INHERITANCE

    DINESH PUBLICATION ENGLISH|Exercise Check your Grasp|30 Videos
  • GENETIC BASIS OF INHERITANCE

    DINESH PUBLICATION ENGLISH|Exercise Check your Grasp|30 Videos
  • FRUIT AND SEED DISPERSAL

    DINESH PUBLICATION ENGLISH|Exercise CHECK YOUR GRASP|10 Videos
  • GROWTH, REPAIR, REGENERATION AND AGEING

    DINESH PUBLICATION ENGLISH|Exercise Brain Teasers-VI[B]|6 Videos

Similar Questions

Explore conceptually related problems

A polygenic trait is controlled by 3 genes A, B and C. In a cross AaBbCc xx AaBbCc, the phenotypic ratio of the offsprings was observed as : 1:6xx:20xx:6:1 what is the possibe value of x?

A polygenic trait is controlled by 3 genes A, B and C. In a cross AaBbCc xx AaBbCc, the phenotypic ratio of the offsprings was observed as : 1:6xx:20xx:6:1 what is the possibe value of x?

If (x-1)(x-3)=-1 , what is a possible value of x?

If |x + 1| = |3x - 2| what are the possible values of x?

If 3x+3y=1 , what is the value of x=y-6 ?

If a polygenic trait is controlled by 3 polygenes, what will be F_(2) phenotypic ratio?

If 7/9x -1/6 x =1/3 +1/2, what is the value of x ?

A plant of F_(1) -generation has genotype 'AABbCC'. On selfing of this plant, the phenotypic ratio in F_(2) -generation will be

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

A plant of "F"_(1) generation with genotype AABbCC. On selfing of this plant what is the phenotypic ratio in "F"_(2) generation?

DINESH PUBLICATION ENGLISH-GENETIC BASIS OF INHERITANCE-Revision Questions From Competitive Exams
  1. During meiosis, the alleles of the parental pair separate or segragate...

    Text Solution

    |

  2. In Mendelian dihybrid cross when heterozygous round Yellow are self cr...

    Text Solution

    |

  3. A polygenic trait is contrulled by 3 genes A,B and C . In a cross AaB...

    Text Solution

    |

  4. If two pea plants having red (dominant) coloured flowers with unknown ...

    Text Solution

    |

  5. Variation found in offspring are important component of

    Text Solution

    |

  6. An allele contributed by one parent is I^(A) and allele contributed by...

    Text Solution

    |

  7. Given below are assertion and reason. Point our if both are true with ...

    Text Solution

    |

  8. F(2) generation has genotypic and phenotypic ratio of 1:2:1. It is

    Text Solution

    |

  9. A man having the genotype EEFfGgHH can produce P number of genetically...

    Text Solution

    |

  10. A cross between tall and dwarf Pea plants, yielded 124 tall and 126 dw...

    Text Solution

    |

  11. A cross between two heterozygous individuals will yield homozygous ind...

    Text Solution

    |

  12. A test cross is performed to distinguish between

    Text Solution

    |

  13. Haemoglobins of normal and sickle cell patient are subjected to electr...

    Text Solution

    |

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

    Text Solution

    |

  15. Among the seven pairs of contrasting traits in pea plant as studied by...

    Text Solution

    |

  16. All are dominant traits studied by Mendel

    Text Solution

    |

  17. In the cross YYRR xx yyrr, the number of green coloured seeds in F(2) ...

    Text Solution

    |

  18. A woman with straight hair mates with a man with curly hairr who is kn...

    Text Solution

    |

  19. Which is mismatched

    Text Solution

    |

  20. A woman with blood type 'O' has a child with blood type 'O' . If she c...

    Text Solution

    |