Bacteria can acquire DNA (i.e., new genes) in 3 basic ways: 1) Transformation • uptake and retention of external DNA molecules 2) Conjugation • direct transfer of DNA from one bacterium to another 3) Transduction • the transfer of DNA between bacteria by a virus Mating pair formation 2. The cell solves the problem of packaging this enormous macromolecule by condensing and looping it into a supercoloid state. Microbiology Lecture - 05 Bacterial Genetics - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. You are also requested to visit our Genetics PPT and Genetics MCQ pages. Genetic elements A. Chromosome B. Plasmids 1. Please click on the desired topic to access its contents. Microbial Physiology is an intensive course with the goal of integrating biochemistry and Micro 2054 - Microbial Genetics. 3. Transformation. 0 These three mechanisms are outlined in the figure below. ; The first gene of com E operon, com … Chapter 9- An Introduction to Microbial Genetics* *Lecture notes are to be used as a study guide only and do not represent the comprehensive information you will need to know for the exams. PowerPoint lecture on Microbial Genetics used in an actual college microbiology classroom. Bacterial Genetics A significant portion of bacterial genetics, the study of bacteria, have been devoted to medical and industrial purposes. Conjugation is carried out in several steps: 1. Microorganisms have the ability to acquire genes and thereby undergo the process of recombination. However, genetic exchanges between bacteria prior to replication of the genome result in genetic diversity that is passed on to daughter cells. Microbial Physiology 11:680:481 . In recombination, a new chromosome with a genotype different from that of the parent results from the combination of genetic material from two organisms. This process doesn’t require a living donor cell and only requires free DNA in the environment. Feel free to contact the Admin if you have any doubts or quires. This results in genetically identical daughter cells. This method was proposed by Lederberg and Tatum. that period many of the bacteria that cause human disease were identified and characterized. Notes: 1) For the last lecture section (Activating Transcription), the exam questions will all come from the lecture notes. DNA t… Dear Biology Aspirants, Here you can find the Lecture Notes in Genetics. Learn lecture notes microbial genetics with free interactive flashcards. Bacteria are ideal for genetic research and engineering because they are easily cultured, possess single chromosomes with less complexity, and have plasmids that can be conveniently used as cloning vectors. Desire2Learn (D2L) Site Powerpoint presentations, copies of literature discussion and reference articles, and other materials will be available via the class D2L site (Microbial Genetics Bio-375/575). Genetic Molecules in a Prokaryotic Cell. This lecture note discusses the principles of genetics with application to the study of biological function at the level of molecules, cells, and multicellular organisms, including humans. In conjugation, bacteria transfer plasmid or chromosomal DNA to another bacterial cell through a bridge between the cells called a pilus. 2) The topic selection for lecture is subject to change at the instructor discretion. PowerPoint Resources. There are various conjugal plasmids carried by various bacterial species. GENETICS. They discovered that the F-factor can move between E.colicells and proposed the concept of conjugation. Science Prof Online (SPO) is a free science education website that provides fully-developed Virtual Science Classrooms, science-related PowerPoints, articles and images. I recommend you download and print (handout format!) Transduction. PowerPoint is the world's most popular presentation software which can let you create professional Bacterial Genetics powerpoint presentation easily and in no time. Bacterial genetics is used as a model to understand . A Short Course in Bacterial Genetics: Lab Manual, Cold Spring Harbor Laboratory Press. Microbio 310 1st Edition Lecture 11 Outline of Last Lecture I 9 1 General Properties of Viruses II 9 2 Nature of the Virion III 9 3 The Virus Host IV… UMass Amherst MICROBIO 310 - Lecture 11: Bacterial Genetics…GradeBuddy This helps you give your presentation on Bacterial Genetics in a conference, a school lecture, a business proposal, in a webinar and business and professional representations.. About Science Prof Online. For the easy navigation, the topics were categorized into modules. 2. Microbial Genetics Notes. MICROBIAL GENETICS 1. Chapter 14 Lecture Notes: Microbial Genetics – Recombination and Plasmids I. Description: Microbial physiology is a 3 credit course with two 1 hour 20 minute lectures each week. There are several ways to do this. Small, circular DNA molecules that can exist independently of the chromosome 2. Figure: competence in Bacillus subtilis. Bacteria reproduce by the process of Binary Fission: the chromosome in the mother cell is replicated and a copy is allocated to each of the daughter cells. ; The product of com A and com K are involved in regulation of competence and other com E, com F and com G encodes structural protein for uptake of DNA. First, we need a way of getting chromosomal DNA from one cell into another. 2. In transduction, phage carry bacterial chromosomal DNA from a cell that underwent a lytic infection to another bacterial cell. Conjugation is the technique of transfer of genetic material from one bacteria to another placed in contact. Characteristics a) Much smaller than the chromosome (<1/20th the size), ranging in size from 200 kb to 2 kb. Genetics Lecture Notes by MIT. The protein involved in transformation of these Gram +ve bacteria is a product of com; In Bacillus subtilis, the com gene are organized into several operons. Bacterial nucleoid The genetic information of bacterial cell is mostly contain in a single, long molecule of double-stranded deoxyribonucleic acid (DNA). • Molecular genetics: introduction to bacterial genetics; structure of the bacterial chromosome; comparative genomics; DNA replication and fidelity. STRUCTURE AND FUNCTION OF GENETIC MATERIAL DNA & RNA DNA=deoxyribonucleic acid RNA=ribonucleic acid Basic building blocks: Nucleotides Phosphate group … Bacterial Genome – DNA, usually circular, sometimes linear, 1500X the cell length Plasmid – extrachromosomal circular, double stranded DNA - much smaller than a genome, not found in all bacteria - usually transferred by … Some Microbial and Genetics Resources, Websites 1. Bacteria are readily visible when present in large numbers because they make a … Individual bacteria were first observed microscopically by Antony van Leeuwenhoek at the end of the 17th century. Choose from 500 different sets of lecture notes microbial genetics flashcards on Quizlet. MICROBIOLOGY - AN INTRODUCTION, by Tortora, Funke, and Case, 10th edition. Lecture 13 Gene Manipulation in Bacteria There is no meiosis in bacteria so special techniques have been worked out for manipulating genes in bacteria so that mapping experiments, strain construction, and complementation tests can be done. the lecture notes before coming to class. Viruses and bacteria are the simplest biological systems—microbial models in which scientists find life’s fundamental molecular mechanisms in their most basic, accessible forms. DNA replication, genetic characters, their changes & transfer to next generations. The textbook is still relevant, but only as a resource if there are topics in the slides that are unclear. Introduction to Microbial Genetics. Overview: Microbial Model Systems. MICROBIAL GENETICS PREPARED BY WELFREDO YU,JR. Conjugal DNA synthesis 3. The bacterial … 1953 – James Watson, Francis Crick, and Maurice Wilkins discovered structure of DNA. 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