BIOL 430 2009 Lecture 2 handout

BIOL 430 2009 Lecture 2 handout - Lecture #2 #2 January...

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Lecture #2 January 13 th , 2010 Processes of Development, and Cell Behaviors Mosaic vs. regulative development Frog development, tissues, terms, Genes control development Gene regulation Review of BIOL BIOL 430 Molecular Genetics of Development 2010 Dr. Ian Chin-Sang (www.chin-sang.ca) 330
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e-mail addresses: o ha e a preferred e ail address s ch as a @hotmail Notes and Announcements : If you have a preferred e-mail address such as a @hotmail or other that you use instead of the Queen’s e-mail eg. [email protected] Please send me an e-mail with your preferred e-mail address Presentation partners and articles will be posted by next Friday (Jan. 30 th ). If you have a partner let me know ASAP A word about lecture notes and class attendance. Class Poll on Quizzes: Yes or No BIOL 430 Molecular Genetics of Development 2010 Dr. Ian Chin-Sang (www.chin-sang.ca)
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wo Fundamental Questions: Two Fundamental Questions: 1. How does the fertilized egg give rise the adult body plan? to the adult body plan? 2. How does and adult yet produce another body? BIOL 430 Molecular Genetics of Development 2010 Dr. Ian Chin-Sang (www.chin-sang.ca)
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The Questions of Developmental Biology Cell Division? ell Differentiation? Cell Differentiation? Pattern Formation? Morphogenesis? BIOL 430 Molecular Genetics of Development 2010 Dr. Ian Chin-Sang (www.chin-sang.ca)
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What processes are needed for development? 1. Cell divisions 2. Cell differentiation Pattern formation 3. 4. Morphogenesis 5. Growth Note: We conveniently distinguish these 5 main developmental processes— But by no means they are mutually exclusive— In reality they overlap with and influence one another significantly during development. BIOL 430 Molecular Genetics of Development 2010 Dr. Ian Chin-Sang (www.chin-sang.ca)
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ive cell behaviors Five cell behaviors • Gene expression results in cell behavior and development. Genes control cell behavior by ontrolling which proteins are made by the cell. controlling which proteins are made by the cell. • Gene activity gives cell identity. 1. Cell-cell communication 2. Cell shape changes Cell movement 3. Cell movement 4. Cell proliferation . Cell death (apoptosis) 5 Ce dea (apop os s) BIOL 430 Molecular Genetics of Development 2010 Dr. Ian Chin-Sang (www.chin-sang.ca)
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A/P axis: anterior ~ head; posterior ~ tail. Words and terms you should know D/V axis: dorsal ~ upper or back; ventral ~ lower or front. The mouth is always on the ventral side ote dorsal ventral not used in human anatomy (note dorsal ventral not used in human anatomy and the terms superior and inferior replace cranial and caudal) Cranial - Cephalic, refers to the head (anterior) Caudal -refers to tail or tail-like (posterior) P/D : proximal ~ near; distal ~ far. from a central point ateral to the side Lateral : to the side.
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This note was uploaded on 12/06/2011 for the course BIOL 430 taught by Professor Dr.ianchin-sang during the Winter '10 term at Queens University.

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BIOL 430 2009 Lecture 2 handout - Lecture #2 #2 January...

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