Microbial Genetics - DNA Transfer l Review of Information Transfer in Cell l Recombination l Transfer of DNA &Genetic Recombination in Bacteria –Conjugation.

Slides:



Advertisements
Similar presentations
Microbial Genetics Chapter 8. Structure and Function of Genetic Material w DNA & RNA w DNA deoxyribonucleic acid w RNA ribonucleic acid w Nucleotides.
Advertisements

Bacterial Genetics. Prokaryotic Cell Circular (and naked) double stranded DNA Bacteria have very short generation spans (ex. E.coli divides every 20 minutes)short.
Microbial Genetics. What is the genetic material?  DNA Nucleotide base pairs  A-T, C-G Chromosomes  Bacteria: circular  Chromatin  Genetics Genes.
DNA, AND IN SOME CASES RNA, IS THE PRIMARY SOURCE OF HERITABLE INFORMATION Noneukaryotic Genetic Information.
Copyright © 2005 Brooks/Cole — Thomson Learning Biology, Seventh Edition Solomon Berg Martin Chapter 13 Gene Regulation.
1 Molecular genetics of bacteria Emphasis: ways that bacteria differ from eukaryotes DNA structure and function; definitions. DNA replication Transcription.
To understand the concept of the gene function control. To understand the concept of the gene function control. To describe the operon model of prokaryotic.
AP Biology Chapter 18: Gene Regulation. Regulation of Gene Expression Important for cellular control and differentiation. Understanding “expression” is.
Operons. Big picture Prokaryotic control of genome expression Prokaryotic control of genome expression 2 levels of control 2 levels of control  Change.
The how and why of information flow in living things.
Viral & Prokaryotic Genetics “Simple” Model Systems.
Genetic Recombination Bacteria are asexual –With sexual reproduction, multiplication and gene recombination are linked. –In bacteria, they are separate.
Control of Gene Expression Big Idea 3: Living systems store, retrieve, transmit, and respond to info essential to life processes.
Copyright © 2009 Pearson Education Inc., publishing as Pearson Benjamin Cummings Lecture prepared by Mindy Miller-Kittrell, University of Tennessee, Knoxville.
REGULATION of GENE EXPRESSION. GENE EXPRESSION all cells in one organism contain same DNA every cell has same genotype phenotypes differ skin cells have.
Differential Expression of Genes  Prokaryotes and eukaryotes precisely regulate gene expression in response to environmental conditions  In multicellular.
Chapters 18 & 19 Bacteria Viruses & Operon Systems.
Chapter 8 Microbial Genetics part B.
AP Biology Chapter 18. I can describe how genetic variation occurs in bacteria.
David Sadava H. Craig Heller Gordon H. Orians William K. Purves David M. Hillis Biologia.blu B – Le basi molecolari della vita e dell’evoluzione The Genetics.
 Operon ◦ Inducible and repressible  Promoter  Terminator  Enhancer  Regulatory Gene  Inducer  Repressor  Regulatory Protein/Sequence  Positive.
Genetics: Chapter 7. What is genetics? The science of heredity; includes the study of genes, how they carry information, how they are replicated, how.
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings PowerPoint ® Lecture Presentations for Biology Eighth Edition Neil Campbell.
AP Biology Horizontal gene transfer Transmission of DNA between species  Transformation  Transduction  Conjugation.
AP Biology Biotechnology Part 2 Genetics of Bacteria.
T4 bacteriophage infecting an E. coli cell 0.5  m.
Noneukaryotic Genetic Information
1 Gene regulation in Prokaryotes Bacteria were models for working out the basic mechanisms, but eukaryotes are different. Some genes are constitutive,
Trp Operon A brief description. Introduction a repressible system In this system, though, unlike the lac operon, the gene for the repressor is not adjacent.
Regulation of Gene Expression Prokaryotes
Section 2 CHAPTER 10. PROTEIN SYNTHESIS IN PROKARYOTES Both prokaryotic and eukaryotic cells are able to regulate which genes are expressed and which.
Chapter 8: Microbial Genetics
Gene Expression. Remember, every cell in your body contains the exact same DNA… …so why does a muscle cell have different structure and function than.
Prokaryotes vs Eukaryotes
Gene Regulation Packet #46 Chapter #19.
Prokaryotic cells turn genes on and off by controlling transcription.
Ch 7: Microbial Genetics. Nucleotide (2.27) (2.25)
Complexities of Gene Expression Cells have regulated, complex systems –Not all genes are expressed in every cell –Many genes are not expressed all of.
Bacteria Gene Regulation. Compare/Contrast Prokaryotic and Eukaryotic Protein Synthesis.
Virus, bacteria, and eukaryotic cell (Fig. 18.1).
GENE EXPRESSION and the LAC OPERON We have about genes inside our DNA that code for proteins. Clearly not all the proteins are needed at the same.
Genetic Engineering Genetic engineering involves the manipulation of organism genes. The central tool is the recombinant DNA technique. - to isolate a.
Regulation of Bacterial Gene Expression Constitutive enzymes are expressed at a fixed rate. Other enzymes are expressed only as needed. –Repressible enzymes.
Chapter 11: Regulation of Gene Expression Wasilla High School
Chapter 18.1 Contributors of Genetic Diversity in Bacteria.
Metabolism - Chapter 5 5 tasks: 1.Bringing nutrients into the cell 2.Breakdown nutrients into useable forms - catabolism 3.Make the building blocks the.
Chapter 8, part B Microbial Genetics.
Chapter 8, part B Microbial Genetics.
Genetics of Bacteria Bacterial genome =.
8 Microbial Genetics.
CHAPTER 8 MICROBIAL GENETICS: BIO 244 MICROBIOLOGY
Regulation of Gene Expression
Bacterial Genetics Binary fission
Microbial Genetics - DNA Transfer
Gene Regulation.
Transcriptional Regulation
Bacterial Genetics Ch. 18.
Microbiology: A Systems Approach
Microbial Genetics.
Biotechnology Part 2 Genetics of Bacteria
OUTLINE 3 Control of Gene Expression in Prokaryotes
Control Mechanisms.
Gene Regulation Packet #22.
Control of Prokaryotic (Bacterial) Genes Different from Eukaryotes!
Biotechnology Part 2 Genetics of Bacteria
Is an inducible operon normally off or on?
Biotechnology Part 2 Genetics of Bacteria
Chapter 8, part B Microbial Genetics.
Molecular genetics of bacteria
Presentation transcript:

Microbial Genetics - DNA Transfer l Review of Information Transfer in Cell l Recombination l Transfer of DNA &Genetic Recombination in Bacteria –Conjugation –Transformation –Transduction

Microbial Genetics - DNA Transfer

l Recombination – process by which DNa is broken and repaired resulting in an exchange of DNA between two DNA molecules to form new combinations of genes l Eukaryotic - crossing over during meiosis l Prokaryotic - occurs when DNA is transfered from one cell to another (transfer from a doner to a recipient)

Microbial Genetics - DNA Transfer Genetic Recombination

Microbial Genetics - DNA Transfer Conjugation

Microbial Genetics - DNA Transfer Normal or Low Frequency Conjugation

Microbial Genetics - DNA Transfer High Frequency Conjugation

Transformation

Transduction

Microbial Genetics - Regulation l Three types of regulation –Constitutive - gene is always turned on –Repression - gene is normally turned on but can be turned off in response to a metabolic signal –Induction - gene is normally turned off but can be turned on in response to a metabolic signal

Microbial Genetics - Regulation l Types of Regulation of mRNA synthesis –Induction - lac operon –Repression - trp operon

Microbial Genetics - Regulation

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.