The X7 allele in a species of a plant has 75 percent penetrance for producing red spots and 60 percent penetrance for dwarfism.If these probabilities of penetrance are independent, _______ percent of individuals with the X7 allele will have neither red spots nor will be dwarfs.

Question

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The probability of not having red spots is 1 - 0.75 = 0.25. The probability of not being a dwarf is 1 - 0.60 = 0.40. The probability of having neither red spots nor being a dwarf is 0.25 * 0.40 = 0.10, or 10%.

The X7 Allele in a Species of a Plant Has