CMMB 403 Final Exam with complete solution

CMMB 403 Final Exam with complete solution Mid-blastula transition (MBT) - answertransition from synchronous to asynchronous cell division Blastocoel - answercavity during development around time of MBT, fluid-filled space; future anus (frog) and future mouth (sea urchin) Gastrulation - answerrearrangement of cell layers during early embryo development; endoderm, mesoderm and ectoderm rearrangment Fate map - answerused at specific stage of embryo development that can tell what cells will become later in development Oocyte - answerimmature egg Egg - answermature oocyte, ready to be fertilized Coel - answercavity Archenteron - answerfuture gut; cavity that will become the future gut Pronephros - answerkidney, functions in early embryo development Otic vesicle - answerauditory structure (ear) Eye - answermade of retina and lens Heart - answerdifferentiates early to move blood Proctodeum - answeranus Nasal pit - answernose Cement gland - answeronly found in frogs, secretes sticky substance to stick to rocks Catenins - answerbind actin cytoskeleton to cadherin Proto-cadherin - answernot bound to actin cytoskeleton Inductive signals - answersignal sent from one group of cells to an adjacent group of responding cells