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BIPN 144 � Lec 6

BIPN 144 â�� Lec 6 - Pictu re 1 BIPN 144 – Lec 6 I...

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Unformatted text preview: Pictu re 1 BIPN 144 – Lec 6 (4/15/10) I. “Fate Map” a. marker or probe to see where the cell goes. II. Gurgon exp: a terminally differentiated skin cell where is can make a whole new frog. a. Community effect.- big piece of tissue, can interact with each other and retain/reinforce initial function, if small population, it can be influenced with the surrounding tissues. i. Small number of cells did not give rise to notochord. ii. If you take a big piece of tissue, it will retain its function. b. Determined: i. Not a fact of nature, it is a fact about how you do the experiment. c. Determining when cells have locked in their fates is impossible because they never do completely. III. AS-C genes – transcriptional factors rqd to turn on neural genes. a. Proneural domain- a group of cells that has competence to become neural. i. ASC often referred to as preneural genes. IV.In the middle (neuroectoderm) layer, there are three rows....
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BIPN 144 â�� Lec 6 - Pictu re 1 BIPN 144 – Lec 6 I...

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