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In Mirabilis jalapa red and white flower...

In Mirabilis jalapa red and white flowers are crossed, what can be phenotype and genotype of `F_2` generation ?

A

A. 1:2:1 and 3:1

B

B. 3:1 and 1:2:1

C

C. 1:2:1 and 1:2:1

D

D. 9:3 : 4 and 3 : 1

Text Solution

Verified by Experts

The correct Answer is:
C
1:2:1 and 1:2:1
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Knowledge Check

  • In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in F_1 generation, pink flowers were obtained. When pink flowers were selfed, the F_2 generation showed white, red and pink flowers. Choose the incorrect statement from the following:

    A
    A.This experiment does not follow the Principle of Dominance.
    B
    B. Pink colour in `F_1` is due to incomplete dominance.
    C
    C. Ratio of `F_2` is 1/4 (Red) : 2/4 (Pink): 1/4 (White)
    D
    D. Law of Segregation does not apply in this experiment.

  • A blue fowl was obtained after crossing between a white and black fowl. Than the ratio of their F_2 generation will be

    A
    `3:1`
    B
    `9:2`
    C
    `1:2:1`
    D
    `13 : 3 `

  • During the study of incomplete dominance in a cross between true breeding flower (RR) and true breeding white flower (rr) when F_1 was sell pollinated resulted F_2 ratio may be

    A
    1 (RR) red , 2 (Rr) pink : 1 (rr) white
    B
    2 (RR) red , 1 (Rr) pink : 1 (rr) white
    C
    1 (RR) red , 1 (Rr) pink : 2 (rr) white
    D
    3 (RR) red , 1 (rr) white

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