{"knowledge_schema": {"broad_category": "Genetics \u2192 Gene Interaction", "refinement": "This problem involves understanding the interactions between X-linked and autosomal genes, specifically focusing on recessive mutations and their effects on phenotypes.", "specific_scope": "The scenario describes a genetic cross between a homozygous female with a specific mutation and a male with wild-type alleles, leading to the analysis of the F2 generation's phenotypic ratios.", "goal": "Determine the expected phenotypic ratio of eye color in the F2 generation resulting from the specified genetic cross."}, "summary": "This genetics problem involves analyzing the interaction between an X-linked recessive mutation (vermilion) and an autosomal recessive mutation (suppressor of vermilion) in Drosophila. The cross between a homozygous vermilion female and a wild-type male leads to the F1 generation, which will all express the vermilion phenotype due to the recessive nature of the mutations. The F2 generation will then be analyzed to determine the expected phenotypic ratio of eye color, considering the effects of both mutations. The goal is to find the correct ratio among the provided options."}