Final answer:
Sex-limited inheritance can be explained by the actions of sex-limited genes, which cause different traits to be expressed in males and females.
Step-by-step explanation:
Sex-limited inheritance can be explained by the actions of sex-limited genes. These are genes that are present in both sexes but turned on in only one sex, causing different traits to be expressed in males and females. For example, genes that instruct male elephant seals to grow big and fight, while instructing female seals to grow small and avoid fights. These genes are responsible for sexual dimorphism.