19_Reproduction - Animal Reproduction Home Page 2006: D....

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1 Animal Reproduction © 2006: D. Julian Home Page Cytokines and growth factors in development Patterning and differentiation during development is controlled by cytokines, morphogens and other growth factors, all of which are probably evolutionary precursors of endocrine hormones. Zebrafish development movie © D. Julian, 20034 Asexual Reproduction © 2006: D. Julian
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2 Asexual reproduction Single-celled eukaryotes and some multicellular eukaryotes reproduce mitotically. A sole parent passes all of its genes to the offspring, and the offspring’s genome is identical to that of its parent. All the offspring of that single parent form a clone (a group of genetically identical organisms). © 2006: D. Julian Asexual reproduction by budding Budding : new individuals split off from existing ones. © 2006: D. Julian Asexual reproduction by fission Fission : separation of parent into two or more individuals of approximately equal size. © 2006: D. Julian
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3 Asexual reproduction by fragmentation Fragmentation : breaking of body into several pieces, some or all of which develop into complete adults. (some sea stars)
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This note was uploaded on 04/12/2008 for the course BSC 2010 taught by Professor Bowes during the Spring '08 term at University of Florida.

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19_Reproduction - Animal Reproduction Home Page 2006: D....

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