01:119:116 Lecture Notes - Lecture 16: Nematode, Flowchart, Cytokinesis

• School: Rutgers University
• Department: Biological Science
• Course: 01:119:116
• Professor: Professor Beal

Document Summary

I. outcomes: now that you know all the steps can you start with the testes and the ovary and go all the way through fertilization and cleavage, list the steps in fertilization and what occurs at each step. A. definition: development- all changes that occur during an entire life cycle, embryonic, after birthing. B. model organisms include sea urchin, frog, chick, and nematode: species chosen for research because they can be easily studied, example: e. coli for bacteria, example: frogs for amphibian, humans are not model organisms. C. many points during lifetime: example: developmental events of frog. A. introduction (where we left off in reproduction: sperm (usually flagellated and motile) fuses with + ovum (larger and immotile) -> Zygote (fertilized egg, single cell): what are the consequences of fertilization, restores diploid number, often determines sex of organism, activates egg, stimulates reactions to start development. B. sea urchin (important: figure 47. 3: egg coverings, internal -> external, 1. )