Lecture3 - MCB 141 Developmental Biology Lecture #3 Jan....

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1 MCB 141 Developmental Biology Lecture #3 Jan. 26, 2010 Drosophila melanogaster (fruit fly) “Dew loving pigmented stomach” Egg - larva 1 day Larva - pupa 4 days Pupa 5 days
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3 http://flybase.org/static_pages/ imagebrowser/imagebrowser10.html For images and movies of fly development: (or just Google “flybase”)
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5 GASTRULATION FORMS THE THREE GERM LAYERS Mesoderm - green (muscle of body and around the gut) Endoderm - red (midgut) Ectoderm white - “skin” light purple - nervous system
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9 Imaginal Disks Fly Genetics ultralight 101 (same as all other genetics) Most mutations are recessive - why?
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Fly Genetics 101 (same as all other genetics) Most mutations are recessive - why? White eye phenotype Genotype is w-/w- Red eye phenotype Genotype is w+/w+ or w+/w- Fly Genetics ultralight 101 (same as all other genetics) Most mutations are recessive - why? A few are dominant - how is this?
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This note was uploaded on 02/16/2010 for the course MCB 74282 taught by Professor Professordernburg during the Spring '10 term at University of California, Berkeley.

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Lecture3 - MCB 141 Developmental Biology Lecture #3 Jan....

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