Chapter 13Bacterial Genetics15-1
Copyright © The McGraw-Hill Companies, Inc. Permission required to reproduce or display 15-1 Bacterial Genetics Bacterial Genetics Chapter 13
Sectionsto study13.1The enormous diversity of bacteria13.2Bacterialgenomes13.3 Bacteria as experimental organisms13.4Gene transferin bacteria13.5Bacterial genetic analysis15-2
Copyright © The McGraw-Hill Companies, Inc. Permission required to reproduce or display 15-2 Sections to study Sections to study 13.1 The enormous diversity of bacteria 13.1 The enormous diversity of bacteria 13.2 Bacterial genomes 13.2 Bacterial genomes 13.3 Bacteria as experimental organisms 13.3 Bacteria as experimental organisms 13.4 Gene transfer in bacteria 13.4 Gene transfer in bacteria 13.5 Bacterial genetic analysis 13.5 Bacterial genetic analysis
13.1 The enormous diversity of bacteriaOutnumber all other organisms on earth.10,000 speciesidentified.BacteriaArchaeaEukaryaAnimalssoSlimeEntoamoebaejemoldsFungiChloroflexusMethanothermus HalophilesPlantsMethanococcusCiliatesPurple bacteriaThermoproteusChloroplastPyrodictiumThermococcusFlagellatesCyanobactenaFlavobacteriaTrichonomadsThemotogalesMicrosponidiaAquifexDiplomonadsCommonAncestorFig 13.115-3
Copyright © The McGraw-Hill Companies, Inc. Permission required to reproduce or display 15-3 13.1 The enormous diversity of bacteria 13.1 The enormous diversity of bacteria Fig 13.1 Outnumber all other organisms on earth. Outnumber all other organisms on earth. 10,000 species identified. 10,000 species identified
Bacteriavaryin sizeand shapeSmallest 200 nmin diameter,thelargest500 um in lengthBacillusBordetellaClostridiumEscherichiaSpirulinaStaphyiococcusStreptococcusSaimonella15-4
Copyright © The McGraw-Hill Companies, Inc. Permission required to reproduce or display 15-4 Bacteria vary in size and shape Bacteria vary in size and shape Smallest 200 nm in diameter, the largest 500 Smallest 200 nm in diameter, the largest 500 m in length. m in length
Common features of bacteriaLack defined nuclear membrane.Chromosomes fold to form anucleoid body.Lackmembranebound organellesMost have a cell wall. Some has a mucus-like coating called acapsule.Manymovebyflagella.NucleoidPlasmidbodyCytoplasmFlagellumCellmembraneCell wallCapsuleFig 13.315-5
Copyright © The McGraw-Hill Companies, Inc. Permission required to reproduce or display 15-5 Lack defined nuclear membrane. Chromosomes fold to form a Lack defined nuclear membrane. Chromosomes fold to form a nucleoid nucleoid body. Lack membrane bound organelles. Lack membrane bound organelles. Most have a Most have a cell wall cell wall. Some has a mucus . Some has a mucus-like coating called a like coating called a capsule capsule. Many move by Many move by flagella flagella. Common features of bacteria Common features of bacteria Fig 13.3