How you know that horses are related to other animals?

In pea plants, purple flower color, c, is dominant to white flower color, c. the table shows the frequencies of the dominant and recessive alleles in three generations of peas in a garden. allele frequency for flower color in peas generation p q 1 0.6 0.4 2 0.7 0.3 3 0.8 0.2 which scientific question might these results cause a scientist to ask?