Final answer:
HOX genes and the sex-determining region Y (SRY) gene are examples of transcription factor genes that regulate morphology and cell differentiation in development.
Step-by-step explanation:
The HOX genes, a group of transcription factor genes, play a critical role in regulating morphology and cell differentiation during development. These genes control the expression of other genes, ultimately influencing the development of specific cell types and body structures. One example of a transcription factor gene that regulates morphology is the HOX transcription factor family. These genes are highly conserved across species, and their expression patterns orchestrate the development of body segments and appendages.
Another example is the sex-determining region Y (SRY) gene, which is involved in the differentiation of male sexual characteristics. The SRY gene encodes a transcription factor that activates the expression of genes responsible for male development. Its absence leads to female development. Together, these transcription factor genes provide a molecular framework for the regulation of morphology and cell differentiation during embryonic development.