Developmental genetics, What is the process of development?

Developmental Genetics

1. What is the process of development?
2. What are the 3 stages of Drosophila development?
3. How does the gene “dorsal” cause the dorsal-ventral axes to form? What protein does the gene dorsal encode? What does it mean that dorsal is of maternal origin?
4. How do bicoid and hunchback determine the anterior-posterior axis?
5. What do homeotic genes do? How is the order of homeotic gene expression determined? Identify a set of homeotic genes shared by all vertebrates.
6. How is apoptosis a critical part of development?
7. Define: Totipotent , morphogens, caspases
8. What do all cancers have in common?
9. Why is a tumor defined as a clonal line of cells?
10. What are the 3 classifications for a tumor?