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  • Two pink coloured flowers on crossing resulted in 1 red, 2 pink and 1 white flower progeny. The nature of the cross will be  (a) double fertilization  (b) self pollination  (c) cross fertilization  (d) no fertilization

Two pink coloured flowers on crossing resulted in 1 red, 2 pink and 1 white flower progeny. The nature of the cross will be 
(a) double fertilization 
(b) self pollination 
(c) cross fertilization 
(d) no fertilization 

 

Answers (1)

Answer:(c)

Solution:
(a) double fertilization: one female gamete unites with two male gametes.
(b) self-pollination: the transfer of pollen from the anther of a flower to the stigma of the same flower
(c) cross-fertilization: fusion of male and female gametes from different individuals of the same species.
(d) no fertilization: Eggs fail to fertilize

In the question it is given that two pink coloured flowers on crossing resulted in 1 red, 2 pink and 1 white flower progeny By the above definitions, nature will be cross-fertilization.
Here fertilization of a plant using pollen from another plant of the same species is taking place. This is an example of cross-fertilization.
Therefore, option (c) is correct.

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