Looking at patterns of inheritance review pp. 63-65 in the manual part 1: white eyes in flies are typically caused by some combination of four distinct mutations. research each of these mutations (below) and summarize the genes they occur in by listing each one's: • normal function • what happens to a fly's phenotype when it is homozygous for a knock-out/null mutation (and why) • what chromosome it is found on • if the typical mutation is dominant or recessive