Lecture_9_Prokaryotic_Genetics_2011

Lecture_9_Prokaryotic_Genetics_2011 - Prokaryotic Genetics...

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Unformatted text preview: Prokaryotic Genetics Jan 31 st , 2011 Helicobacter pylori, a prokaryote and the dominant cause of eptic ulcer disease, shown adhering to a eukaryotic gastric c Announcements First midterm Friday Feb 4 covers through Jan 31 st Bring a writing utensil non-erasable pen Bring a SIMPLE calculator DO NOT bring a cell phone or PDA Review You can determine if two mutations are in the same gene by performing a COMPLEMENTATION TEST . Mutations in DIFFERENT genes COMPLEMENT one another. Mutations in the SAME gene do NOT complement ( NONCOMPLEMENT ) one another. Complementation test only work with RECESSIVE alleles. There are exceptions to the complementation test such as NONALLELIC NONCOMPLEMENTATION and INTRAGENIC E. Coli is a Model Prokaryote No nucleus Lives in your gut 4000 genes Circular genome 4.6 million base pairs Haploid Divides mitotically Bacteria use novel mechanisms to exchange genetic information. Bacterial Sex Genetic Transfer in Bacteria Conjugation (by mating) Transformation (by scavenging) Transduction (by infection) njugation - Lederburg and Tatu...
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Lecture_9_Prokaryotic_Genetics_2011 - Prokaryotic Genetics...

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