If one of the purple-flowered progeny plants is selected at random and self-fertilized, what is the probability it will breed true? if one of the purple-flowered progeny plants is selected at random and self-fertilized, what is the probability it will breed true? 2/3 3/4 1/4 1/3

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01-10-2017
Mathematics

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If one of the purple-flowered progeny plants is selected at random and self-fertilized, what is the probability it will breed true? if one of the purple-flowered progeny plants is selected at random and self-fertilized, what is the probability it will breed true? 2/3 3/4 1/4 1/3

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mathmate mathmate · Answer 1 · 2017-10-01T14:36:20+02:00

This is in reality a biology question given a lot of biology related information is not given in the problem.
However, I will provide the answer by making biology-related assumptions.
1. The genotype of the purple-flowered progeny is Pp
2. The purple-flower phenotype is recessive.

If self fertilized, both "parents" have genotype Pp
The punnett square is as follows:

P p
P PP Pp
p Pp pp

Since purple-flowers are recessive, only PP will come out purple, hence the probability is 1/4.