Question

The F1 are allowed to cross with each other, and produce the following offspring.
57 red eyed
14 brown eyed
13 cinnabar eyed
6 white eyed

One of the white eyed females is cross with one of the male F1. The results are as follows
23 red eyes
27 brown eyes
25 cinnabar eyes
25 white eyes.
a) What genetic interaction is happening here? How many loci, how many alleles, and how do they interact?
b) Diagram both crosses and explain the results.