A particular population of chickens has a frequency for the dominant allele as 0. 70 and a frequency for the recessive allele as 0. 30. Which expression is the correct way to calculate the frequency of individuals that are heterozygous? A. (0. 70) × (0. 30) B. (0. 70) – (0. 30) C. 2 × (0. 70) × (0. 30) D. 2 × (0. 70 – 0. 30).
