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A researcher at XYZ institute of genetic...

A researcher at XYZ institute of genetic research, employed at the botany department, performed an experiment by crossing pure red flowered plant with pure white flowered plants. He expected all red flowered plants in `F_1` but was surprised on seeing that all `F_2` hybrids had pink coloured flowers. On selfing of `F_1`, flowers of all 3 colours (red, pink and white) were obtained in `F_2`
Based on his work, he was given a questionnaire by his guide.Help him in provinding accurate answers.

The diverse genotypes obtained in `F_2` generation will be:

A

RR, Rr

B

RR,rr

C

all rr

D

RR,Rr,rr

Text Solution

Verified by Experts

The correct Answer is:
D
RR,Rr, rr Explanation . The flowers of all 3 colours (red, pink ,white) were obtained in `F_2` This explains the 3 genotypes.
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A researcher at XYZ institute of genetic research, employed at the botany department, performed an experiment by crossing pure red flowered plant with pure white flowered plants. He expected all red flowered plants in F_1 but was surprised on seeing that all F_2 hybrids had pink coloured flowers. On selfing of F_1 , flowers of all 3 colours (red, pink and white) were obtained in F_2 Based on his work, he was given a questionnaire by his guide.Help him in provinding accurate answers. This condition that forms the basic principle of this cross also happens in:

A researcher at XYZ institute of genetic research, employed at the botany department, performed an experiment by crossing pure red flowered plant with pure white flowered plants. He expected all red flowered plants in F_1 but was surprised on seeing that all F_2 hybrids had pink coloured flowers. On selfing of F_1 , flowers of all 3 colours (red, pink and white) were obtained in F_2 Based on his work, he was given a questionnaire by his guide.Help him in provinding accurate answers. Which of the following disease runs in the ts in family of British queen?

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  • A researcher at XYZ institute of genetic research, employed at the botany department, performed an experiment by crossing pure red flowered plant with pure white flowered plants. He expected all red flowered plants in F_1 but was surprised on seeing that all F_2 hybrids had pink coloured flowers. On selfing of F_1 , flowers of all 3 colours (red, pink and white) were obtained in F_2 Based on his work, he was given a questionnaire by his guide.Help him in provinding accurate answers. The underlying principle in these crosses is:

    A
    Incomplete dominance
    B
    Co-dominance
    C
    Pleiotropy
    D
    All of these.

  • A researcher at XYZ institute of genetic research, employed at the botany department, performed an experiment by crossing pure red flowered plant with pure white flowered plants. He expected all red flowered plants in F_1 but was surprised on seeing that all F_2 hybrids had pink coloured flowers. On selfing of F_1 , flowers of all 3 colours (red, pink and white) were obtained in F_2 Based on his work, he was given a questionnaire by his guide.Help him in provinding accurate answers. The inheritance of human skin colour is an example of

    A
    Incomplete dominance
    B
    Co-dominance
    C
    Pleiotropy
    D
    All of these

  • A researcher at XYZ institute of genetic research, employed at the botany department, performed an experiment by crossing pure red flowered plant with pure white flowered plants. He expected all red flowered plants in F_1 but was surprised on seeing that all F_2 hybrids had pink coloured flowers. On selfing of F_1 , flowers of all 3 colours (red, pink and white) were obtained in F_2 Based on his work, he was given a questionnaire by his guide.Help him in provinding accurate answers. What will be the genotypic ratio in the following cross:

    A
    `1:4:1`
    B
    `1:2:2`
    C
    `1:2:1`
    D
    `1:3:1`

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