PPT-Bacteriophages

By Monique Hunter Bacteriophages or phages are viruses that infect bacteria In 1917 Frenchcanadian microbiologist Felix dHerelle observed an unknown substance killing bacteria as did his . Also known as phages coming from the root word phagein meaning to eat these viruses can be found every where bacteria exist including in the soil deep within the earths crust inside plants and animals and even in the oceans The oceans hold some of t Nicholas . Celms. San Diego State University. Funded in part by NSF 0827278 UBM Interdisciplinary Training in Biology and Mathematics.. 1. Goal. Build a method for making taxonomic groupings of . bacteriophages. Bacteriophages are viruses that parasitize bacteria. Bacteriophages were jointly discovered by Frederick Twort (1915) in England and by Felix d'Herelle (1917) at the Pasteur Institute in France. Felix Figure 21.1 Basic shapes of bacteriophages. There are two basic morphologies of bacteriophages. The virion is either isomeric, in the shape of a polyhedral, such as an icosahedral, sometimes with a tail and tail fibers, or it is helical, in a spiral filamentous formation.. . . Vaid. , B.C. . Bera. , Sanjay . Barua. , . Riyesh. T. and Praveen . Malik. ). Veterinary Type Culture Collection, . National Research Centre on Equines, . Sirsa. Road, . Hisar. , Haryana, India. 1. https://. socratic.org. /questions/why-are-restriction-enzymes-important-for-recombinant-dna-technology. Restriction enzymes sometimes called molecular scissors . PART 1: Background. What do restriction enzymes do . or phages are viruses that specifically infect bacteria. . Viral vectors are those in which gene of interest is incorporated in the genome of virus.. The phage particle attaches to the outer surface of bacterium and injects its DNA into the cell.. by. Prof. . Meena. . Nagawanshi. Professor . Department of . Zoology. Deogiri . College, Aurangabad. Enzymes. Enzymes are proteins. . biological catalysts .  help drive biochemical reactions. Enzyme names end with an . Hygiene. . and Epidemiology. Biological Threats . Identification . and . Countermeasure . Centre. PUŁAWY. ul. Lubelska 2. Col (ret) Romuald Gryko Ph.D., MVD. .,. Chief of . Biotechnology. and . Nanotechnology.