One day, you discover a new phenotype in one of your litters of baby rate siblings were born with purple eyes, You think that the baby rates may have been born with a mutant allele, and decide to investigate, You raise the three purple-eyed rates to marturity, and use them in the following crosses:

What is the dominance relationship between the purple mutant allele and the eye-colour alleles you identified in question 1a? Formulate a hypothesis, and support it by referring to the ata in the table.

Cross # 5 6 7 Parents (P) Purple eyes x yellow eyes Purple eyes x red eyes Purple eyes x yellow eyes Offspring (F) 32 purple eyes 15 purple eyes 16 yellow eyes 15 purple eyes 7 yellow eyes 8 red eyes