Pax6 is a transcription factor that is essential for the development of the eye in fruit flies and other animals.

Homeobox genes are a type of transcription factor that are involved in the regulation of gene expression. They are not specifically involved in developmental processes.

Gene regulation is the process by which the expression of genes is controlled. This includes the processes of transcription, translation, and differentiation.

Post-translational regulation is the process by which the activity of a protein is modified after it has been translated. This is not a type of gene regulation.

Inheritance is the process by which developmental genes are passed from one generation to the next. This can occur through mitosis, meiosis, or fertilization.

Y-linked dominant inheritance is not a type of inheritance. Y-linked genes are only passed from fathers to sons, so they cannot be dominant.

Natural selection is the process by which developmental genes evolve. Natural selection favors genes that are beneficial to the organism, and these genes are more likely to be passed on to the next generation.

Sexual selection is not a type of natural selection. Sexual selection is the process by which organisms choose mates based on their physical or behavioral traits.

Homology is the process by which developmental genes are conserved across different species. Homologous genes are genes that have the same sequence and function in different species.

Analogous homology is not a type of homology. Analogous homology is the similarity between genes that have different sequences but similar functions.

Evo-devo is the field of study that focuses on the evolution of developmental genes. Evo-devo researchers study how developmental genes have changed over time and how these changes have affected the evolution of organisms.

Population genetics is not a type of evo-devo research. Population genetics is the study of the genetic variation within populations.

Your Inner Fish is a book by Neil Shubin that popularized the field of evo-devo. The book tells the story of the evolution of life from fish to humans.

Sox genes are not discussed in Your Inner Fish. Hox genes, Pax genes, and Wnt genes are all discussed in the book.

Nkx2-5 is a transcription factor that is essential for the development of the heart in vertebrates.