CMMB 403 Final Exam Review Q&A Latest Update 2025-2026

Content Preview

CMMB 403 - Final Exam Review | Q&A Latest 2025/2026 | 100% PASS Which animal's development is chick development most similar to compared to other species? - Answer -Most similar to humans than other species talked about in lecture (like amphibians and flies) What is the Nieuwkoop Centre (NC)? When does it emerge during embryo development? - Answer -Centre that induces the formation of the organizer and later the dorsal mesoderm; emerges during the late blastula stage How does the fish organizer and Niewukoop Centre (NC) compare to their amphibian counterparts? - Answer -They have similar functions When during embryo development does the organizer develop? Where does the organizer form? - Answer -Gastrula stage; organizer forms opposite to sperm entry What kind of cleavage do zebrafish embryos undergo? - Answer Discoidal meroblastic cleavage What is the fish organizer called? - Answer -The embryonic shield What is the fish Nieuwkoop centre (NC)? - Answer -The yolk syncytial layer directly below the shield (BUT NOT the entire yolk syncytial layer itself); this area is where nuclear localization of b-catenin is seen as it is what is forming the NC centre