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Assertion : The pink coloured flowers ap...

Assertion : The pink coloured flowers appear in `F_(2)` generation of plant Mirabilis jalapa
Reason : This is observed due epistatic suppression of white colour alleles in one of parental flowers by red colour alleles

A

If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

B

If both the assertion and the reason are true but the reason is not a correct explanation of the assertion.

C

If the assertion is true but the reason is false.

D

If both the assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
C
In Mirabilis jalapa (four 0' clock) there are two types of flower colour in pure state : red and white. When the two types of plants are crossed, the hybrid or plants of `F_(1)` generation have pink flowers. It the latter are selfed, the plants of `F_(2)` generation are of three types-red, pink and white flowered in the ratio of `1: 2:1`. The pink colour apparently appears due to incomplete dominance of red (dominant) over white (recessive). Thus, pink is differentiated from red and white.
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