Important Questions for Second Exam Learning Objectives for Second Exam. This not everything you need to know, but the list does emphasize some important points. Chapter 3 1. Know the significance of Townes and Holtfreter's experiments in 1955 to our current understanding of morphogenesis. Be able to describe morphogenesis by a thermodynamic model like that expressed in figure 3.7. 6.
Cellular interactions involve adhesion and communication.
Be able to detail these categories by types and molecules involved. Explain how an antibody specific to an adhesion protein might interfere with morphogenesis if introduced to the exterior of a developing embryo. Chapter 4 1. Be able to describe the microscopic and biochemical structure of sea urchin and mammalian sperm and eggs. As described in Chapter 4, know the details of sperm and egg development.