Suppose that a genetics research concludes that the probability of obtaining a double dominant phenotype in an F2 cross is 9/16. This conclusion can be valid only if one or more assumptions are true. Which of the following is a necessary assumption? a. Alleles have an equal probability of separating into gametes.
b. The two genes assort independently.
c. The sample size is small.
d. Both a and b
e. Both b and c