Chapter 14Organellar Genetics16-1
Copyright © The McGraw-Hill Companies, Inc. Permission required to reproduce or display 16-1 Organellar Organellar Genetics Genetics Chapter 14 Chapter 14
Sectionsto study14.1Mitochondria andtheirgenomes14.2Chloroplastsandtheirgenomes14.3 The relationship between organellar and nuclear genomes14.4 Non-Mendelian inheritance of mitochondria andchloroplasts14.5 Mutant mitochondria and human disease16-2
Copyright © The McGraw-Hill Companies, Inc. Permission required to reproduce or display 16-2 Sections to study Sections to study 14.1 Mitochondria and their genomes 14.2 Chloroplasts and their genomes 14.3 The relationship between organellar and nuclear genomes 14.4 Non-Mendelian inheritance of mitochondria and chloroplasts 14.5 Mutant mitochondria and human disease
14.1 Mitochondria and theirgenomesMitochondria are sites of energy productionPresentineukaryotesNumber of mitochondria ineachcell variesOutermembraneTEMInnermembraneCristaMatrix1μmRibosomesCaotiohtoaooePersonEdu16-3
Copyright © The McGraw-Hill Companies, Inc. Permission required to reproduce or display 16-3 Mitochondria are sites of energy production. Mitochondria are sites of energy production. Present in eukaryotes. Number of mitochondria in each cell varies. 14.1 Mitochondria and their genomes
OuterInnermembranemembraneCristaeProduce ATPthrough the oxidativeHHHphosphorylation ofADP.MatrixIntermembranePorespaceEnzymesofKrebscycleEnzymesofMatrixelectrontransportchainEnzymesforATPIntermembranesynthesisspaceInnermembraneFig 14.216-4
Fig 14.2 Copyright © The McGraw-Hill Companies, Inc. Permission required to reproduce or display 16-4 Produce ATP through the oxidative phosphorylation of ADP
Thegenomes of mitochondriaMitochondrionTRNAS吉子HtRNAS10-20proteinstRNASmtDNAproteinsShape: circular in most species; linear in a few species.mtDNA lies withinmatrix of the organellein structures callednucleoids.Number of mtDNA ineachmitochondria canchangeReplicationisindependent of the cell cycleand occursrandomly.16-5
Copyright © The McGraw-Hill Companies, Inc. Permission required to reproduce or display 16-5 The genomes of mitochondria The genomes of mitochondria Shape: circular in most species; linear in a few species. Shape: circular in most species; linear in a few species. mtDNA lies within matrix of the lies within matrix of the organelle in structures called organelle in structures called nucleoids nucleoids. Number of Number of mtDNA in each mitochondria can change. in each mitochondria can change. Replication is independent of the cell cycle and occurs Replication is independent of the cell cycle and occurs randomly. randomly