4 BISC_120 Inheritance-Edmands

4 BISC_120 Inheritance-Edmands - Suzanne Edmands Office...

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1 1 Suzanne Edmands Office hours (AHF 316): M/W 11:30-12:30 and by appointment You are here AHF (Allan Hancock Foundation) 2 Reminders • Labs begin this week. – Yes, there will be a pre-lab quiz. – Section changes must be done by Sept. 10 • In-class clicker questions (for credit) begin today • Requests for academic accommodations based on disability are due Friday Sept. 3 3 A little about me…. 4 Research: Genetics and evolution of (mostly) marine populations
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2 5 Many opportunities for undergraduate research in my lab and other labs at USC Karen Barnard, 1st Prize, Life Sciences Div., USC Undergraduate Symposium for Scholarly and Creative Work 6 Teaching: Fall - BISC 120: Evolution section Spring - BISC 456: Conservation Genetics on Catalina Island! 7 “Nothing in biology makes sense except in the light of evolution - Theodosius Dobzhansky, 1973 8 Lecture 3: Patterns of Inheritance • Chapter 14
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3 9 Gregor Mendel * • Austrian Monk • Lived 1822-1884 • Developed laws of inheritance • Work not appreciated until after his death * Throughout the course, important names and terms will be underlined . 10 Why Peas? – Many distinct traits – Mating can be controlled – Easy to do both cross fertilization and self- fertilization – Fairly short generation time – Early experiments showed interesting patterns http://www2.edc.org/weblabs/IncompleteDom/ incompletedominance.html Fig. 14.2 P Generation (true-breeding parents) F 1 Generation (hybrids) F 2 Generation Purple flowers White flowers All plants had purple flowers A typical experiment with true-breeding parents Fig. 14.3 12 Mendel’s Model • 1) Trait variation is due to alternative
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4 BISC_120 Inheritance-Edmands - Suzanne Edmands Office...

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