1. Day DateReadingTopic T 9/2 pp.216-231 (Ch. 6) C. elegans, model systems, and molecular genetics Watch three Audio/Video handouts: 1A), 1B), and 1C Th9/4Ch. 1An introduction to developmental biology T9/9 QUIZ 1 (covers A/V Handouts 1A, 1B, and 1C) More introduction Watch two Audio/Video handouts: Review of transcription regulation, Parts 1 and 2 Th9/11Ch. 3Vertebrate life cycles T9/16 QUIZ 2(covers A/V Handouts 2A and 2B) Vertebrate axes and germ layers Th9/18 CH. 4Vertebrate axial patterning T9/23More vertebrate body plan Th9/25Ch. 5Early patterning of vertebrate nervous systems T9/30EXAM 1Chapters 1, 3, 4, and pp216-231 Th10/2 Ch. 2Molecular development of Drosophila T10/7More molecular development of Drosophila Th10/9Ch. 7Plant development On Thursday, 10/9, Please bring a copy of the primary research article you have selected (or more than one if you haven’t decided) plus your notes on the article.

2. QUIZ in class next Tuesday on...

5. OUR FIRST IN-CLASS ASSIGNMENT IS THURSDAY

7. A fertilized nematode egg and early embryos as viewed with Nomarski optics = Differential Interference Contrast (DIC).

8. The scientists discovered that lin-4 targets lin-14 for destruction by a novel mechanism called RNA interference (RNAi).

13. von Baer’s Principles: 1. General features of a large group of animals appear earlier in development than do the specialized features of a smaller group. 2. Less general characteristics are developed from the more general, until finally the most specialized appear. All vertebrates initially have the same kind of skin - only later does the skin develop fish scales, reptilian scales, bird feathers or hair, claws and nails of mammals. 3. The embryo of a given species, instead of passing through the adult stages of lower animals, departs more and more from them. 4. Therefore the embryo of a higher animal is never like a lower animal, but only like its early embryo. Human embryos never pass through a stage equivalent to an adult fish. Early human embryos share characteristics in common with fish embryos.