1) In tomatoes, red fruit (R) is dominant over yellow fruit (r). In a tomato plant population exhibiting Hardy–Weinberg equilibrium, if allele r has a frequency of 0.72, what percentage of the population is homozygous dominant for this trait?
Express your answer using three significant digits.
Answer %
2) In mice, black fur (W) is dominant over white fur (w). In an ideal mouse population exhibiting Hardy–Weinberg equilibrium, 189 mice out of 215 have white fur.
Calculate the number of mice that are heterozygous dominant for the fur colour gene in the population.
Express your answer rounded to the nearest whole number.
Answer
3) In horses, tobiano is a white spotting pattern. The tobiano allele (T) is dominant over the non-tobiano (t) allele. In an ideal horse population exhibiting Hardy–Weinberg equilibrium, 375 horses out of 400 are non-tobiano.
a. Calculate the number of homozygous dominant tobiano horses. Answer
b. Calculate the number of heterozygous horses. Answer
c. Calculate the number of tobiano horses in the population. Answer
Express your answer rounded to the nearest whole number.
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