Home
Class 12
BIOLOGY
Dihybrid test cross ratio with 82% paren...

Dihybrid test cross ratio with 82% parental type and 18% recombinants type shows that genes have

A

Incomplete linkage

B

Complete linkage

C

Independent assortment

D

Double crossing over

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • PRINCIPLES OF INHERITANCE AND VARIATION

    AAKASH SERIES|Exercise EXERCISE-I (Sex determination & Genetic Disorders)|44 Videos

  • PRINCIPLES OF INHERITANCE AND VARIATION

    AAKASH SERIES|Exercise EXERCISE -II|70 Videos

  • PRINCIPLES OF INHERITANCE AND VARIATION

    AAKASH SERIES|Exercise EXERCISE -III (Previous AIPMT /NEET Questions)|39 Videos

  • PRINCIPLES AND PROCESSES

    AAKASH SERIES|Exercise Exercise - III (Previous AIPMT/NEET Questions)|26 Videos

  • RESPIRATION IN PLANTS

    AAKASH SERIES|Exercise Exercise - III|9 Videos

Similar Questions

Explore conceptually related problems

A dihybrid test cross ratio for two completely linked genes will be

The ratio of a dihybrid test cross is

The following results are obtained in several dihybrid test crosses in an organism considering three genes loci Aa,Bb and Cc. a. In test cross with AaBb the number of recombinants and parental combinations are 50 and 950 respectively. b. In TC with AaCc the number of Rc and PC are 75 and 425 respectively. c. In TC with BbCc the number of RC and PC are 160 and 640 respectively. basing on the above result identify the gene loci of the three genes /prepare a genetic map of the three genes.

The ratio of various genotypes of a recombinant phenotype of F_(2) dihybrid cross

Let us do the following activity to understand the mendelian principles of heredity. Materaials required: a. 3cm length and 1 cm breadth chart pieces -4 b. 2 cm length and 1 cm breadth chart pieces -4 c. Red byuttons -4 d. white buttons -4 e. chart, scale, sketch pen penil, 2 bags. Method: Prepare a chart with 2x2 boxes along with numbe and symbol as shown in the figure. Game 1: Monohybrid cross (starting with hybrid parents) To start with take 1,2 or 3,4 . In case you start 1,2 pik all the 16 log and short pieces and prepare such paris in each of which you have a long and short piece. Take 4 pairs each of long and short strips and put them in two separate bags. Now each bag contains 8 strips (4 long and 4short). One bag say 'A' represents mael and the bag 'B' represents female . Now rendomly pick one strip each from bag A and B and put them together in the 1 on the chart. Keep picking out the strips and arrange them in the same manner till your bags are empty. Same time your boxes in the chart are filled with paris of strips. you might have got the following combinations, two long strips, one long and one short strip, two short strips. (Q) D. What is the percentage of each type? also find their ratios.

An individual homozgous for genes cd is crossed with wild type and F_(1) is crossed back with the double recessive. The appearance of the offspring is a follows: {:(++" "-" "903),(cd" "-" "897),(+d" "-" "98),(c+" "-" "102):} The distance between genes c and d is

Two genes A and B are linked in a dihybrid cross involving these two genes, the F_(1) heterozygote is crossed with homozygous recessive parental type (aa bb). What would be the ratio of offspring in the next generation?

The percentage rof recombination involving th seed shape and seed colour ina plant is 10%. What is the distance (mp) between the genes on a chromosome controlling these characters?

AAKASH SERIES-PRINCIPLES OF INHERITANCE AND VARIATION-EXERCISE-I
  1. The scientist used chromosomal movement to explain Mendel's laws

    Text Solution

    |

  2. The terms linkage and recombination were coined by

    Text Solution

    |

  3. Which of the following is suitable for experiment on linkage?

    Text Solution

    |

  4. Parallelism between factors and chromosome led to the formation of

    Text Solution

    |

  5. Dihybrid test cross ratio with 82% parental type and 18% recombinants ...

    Text Solution

    |

  6. A dihybrid test cross ratio for two completely linked genes will be

    Text Solution

    |

  7. Select the odd one out with respect to the chromosomal theory of inher...

    Text Solution

    |

  8. To describe the generation of non parental gene combinations Morgan co...

    Text Solution

    |

  9. Crossing over in diploid organisms is responsible for

    Text Solution

    |

  10. The genes for the eye colour and size of the wing in Drosophila are lo...

    Text Solution

    |

  11. Linkage in Drospohila was reported by

    Text Solution

    |

  12. Frequency of recombination between gene pairs on the same chromosome a...

    Text Solution

    |

  13. The frequency of crossing over would be higher if

    Text Solution

    |

  14. A phenomenon which results in alteration of DNA sequences and conseque...

    Text Solution

    |

  15. One centimorgan is equal to recombination frequency of

    Text Solution

    |

  16. Which statement is incorrect about linkage?

    Text Solution

    |

  17. In sickle cell anaemia, an amino acid substitution is

    Text Solution

    |

  18. The linked characters would always inherit together till they are

    Text Solution

    |

  19. Variation in DNA is due to

    Text Solution

    |

  20. Mutation is due to

    Text Solution

    |