07bionotes1

07bionotes1 - 00:32:00 Development 3 Induction Cleavage and...

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05/11/2007 00:32:00 Development 3: Induction, Cleavage, and Gastrulation Ch. 19 pp437-438; Ch 42 pp 919-932 Production of differential gene expressision MAIN WAYS CELL DIFFERENTIATE FROM ONE ANOTHER neighboring cells can induce neighbors into becoming different cells. o Cytoplasmic Segrefation ie stem cell partititons its proteins to one side of the cell. Diceides sch that one cells retians the ability to divie the the other differentiates into something new. It can ahppen during any time in development o Induction Caenorhabditis elegans procies a striking example of induction adult consists of 959 cells that develop from the fertilized eff by a precise pattern of cell divisions and other events organism is very small small number of cells (about a 1000) great model organism easyt o tack cells. It is transparent Entire cell lineage has been determined for this organism We know what every cell becomes WE can use pathogenetics to look for mutants
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07bionotes1 - 00:32:00 Development 3 Induction Cleavage and...

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