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A Gene That Controls for the Skin Colour of a Variety

Question 23

Multiple Choice

A gene that controls for the skin colour of a variety of apples has two alleles A and a. The allele A is dominant and it is associated with the colour red, whereas the allele a is recessive and it is associated with the colour yellow. If two heterozygous apples are crossed with each other, what is the probability of one of the offspring being red?


A) 100%
B) 75%
C) 50%
D) 25%

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