Home
Class 12
BIOLOGY
Grain colour of wheat is determined by t...

Grain colour of wheat is determined by three pairs of polygenes. What proportion of `F_(2)` progeny will resemble either parents following a cross of AABBCC (dark colour) with aabbcc (light colour).

A

None

B

Half

C

Less than 5%

D

One third

Text Solution

Verified by Experts

The correct Answer is:
C
Only two out of 64 (one with pure dominant, one with pure recessive ) resemble parents. The percentage is 2/64`xx100`.
Promotional Banner

Topper's Solved these Questions

  • GENETIC BASIS OF INHERITANCE

    DINESH PUBLICATION|Exercise Check your Grasp|23 Videos

  • GENETIC BASIS OF INHERITANCE

    DINESH PUBLICATION|Exercise Check your Grasp|23 Videos

  • FRUIT AND SEED DISPERSAL

    DINESH PUBLICATION|Exercise CHECK YOUR GRASP|10 Videos

  • GROWTH, REPAIR, REGENERATION AND AGEING

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

Similar Questions

Explore conceptually related problems

grain clour in wheat isdetermined by three pairs if polygenes. Following the cross AABBCC (dark colour) xx aabbcc (light colour), in F_(2) generation what proportion of the progeny likely to resemble either parent

Consider the cross AaBbCcDdEe x aaBbccddee. What proportion of the progeny will genotypically resemble the first parent ?

Grain colourr in wheat is determined by 3 pairs of polygenes. A cross between AABBCC x aabbcc will produce progeny in F_(2) in what proportion that is likely to resemble either parent.

How many different types of gametes can be formed by "F"_(1) progeny resulting from the following cross? AABBCC xx aabbcc

Two pink coloured flower on corssing resulted in 1 red,2 pink and 1 white flower progeny. The nature of the cross will be

A male child colour blind and his blood group is 'AB' Identify the parents from the following pairs :

What is the ratio of homozygous genotypes of flower colour in F_(2) generation for snapdragon ?

What proportion of offsprings in the F.. generation of a tetrahybrid cross will resemble the phenotype of parents that produce the F.. hybrid ?

When a red grain variety of wheat is crossed with another white grain vartiety F_(1) hybrid is produced. On selfing of this F_(1)- hybrid, how many offsprings of F_(2)- generation resemble phenotypically to it's parents (let grain colour of wheat controlled by three gene pairs )

In cattle, the coat colour red and white are two dominant traits, which express equally F_(1) to produce roan (red and white colour in equal proportion). If F_(1) progeny are self breed, the resulting progeny in F_(2) will have phenotypic ration (red : roan : white) is -

DINESH PUBLICATION-GENETIC BASIS OF INHERITANCE-Revision Questions From Competitive Exams
  1. In Drosophila gene for white eye colour is also responsible for depigm...

    Text Solution

    |

  2. For finding the different types of gametes produced by genotype AaBb, ...

    Text Solution

    |

  3. Grain colour of wheat is determined by three pairs of polygenes. What ...

    Text Solution

    |

  4. In Pisum sativum there are 14 Chromosomes. How many paris with differe...

    Text Solution

    |

  5. Pure tall plant is crossed to dwarf plant. F(1) generation consists of...

    Text Solution

    |

  6. A baby of blood group A cannot belong to parents of blood group

    Text Solution

    |

  7. The ratio of 9:3:3:1 is due to

    Text Solution

    |

  8. Find out the correct statement.

    Text Solution

    |

  9. Cross between homozygous black rough (BBRR) guinea pig and homozygous ...

    Text Solution

    |

  10. Phenotype of an organism is result of

    Text Solution

    |

  11. In Mendel's experiments with Garden Pea, round seed shape (RR) was dom...

    Text Solution

    |

  12. Test cross involves

    Text Solution

    |

  13. Two pea plants were subjected cross pollination. Of the 183 plants pro...

    Text Solution

    |

  14. Which pair of features represents polygenic inheritance ?

    Text Solution

    |

  15. Mating of an organism to double recessive in order to determine whethe...

    Text Solution

    |

  16. Human skin colour is polygenic trait with each dominant determing a pa...

    Text Solution

    |

  17. A test cross is performed

    Text Solution

    |

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

    Text Solution

    |

  19. When pure long plant having white flower is crossed with pure dwarf pl...

    Text Solution

    |

  20. Which of the following is correct for dihybrid cross ?

    Text Solution

    |