National Health Museum
Access Excellence: Sex Linked Inheritance: Drosophila
Here are graphics illustrating an experiment with drosophila fruitflies. Sex-linked inheritance is demonstrated here using eye color alleles on X chromosomes. Site by Access Excellence.
OpenStax
Open Stax: Anatomy & Physiology: Patterns of Inheritance
Students learn about patterns of inheritance including genotype and phenotype, and then learn about the inheritance of autosomal dominant and recessive and sex-linked genetic disorders.
National Health Museum
Access Excellence: Inheritance of Hemophilia
This site explains the X-linked inheritance of Hemophilia and includes a diagram.
National Cancer Institute at the National Institutes of Health
National Cancer Institute: What Are Gene Mutations?
This website provides an answer to the following question: "What are Gene Mutations?" Many links are provided throughout this short description that access information on related subjects.