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Bacterial, Phage and Molecular Genetics - An Experimental Course (Paperback, Softcover reprint of the original 1st ed. 1976): G... Bacterial, Phage and Molecular Genetics - An Experimental Course (Paperback, Softcover reprint of the original 1st ed. 1976)
G Schulte-Hiltrop; Ulrich Winkler, W. Ruger; Translated by W. Ruger; Wilfried Wackernagel
R2,955 Discovery Miles 29 550 Ships in 10 - 15 working days

During the mid-forties bacteria and phages were dis- covered to be suitable objects for the study of genet- ics. Genetic phenomena such as mutation and recombina- tion, which had already been known in eukaryotes for a long time, were now shown to exist in bacteria and phages as well. New phenomena as lysogeny and trans- duction were discovered, which gained great importance beyond the field of microbial genetics. Bacteria and phages are of small size, multiply rapid- ly, and have chemically defined growth requirements. Many selective procedures can be applied to screen for rarely occurring mutants or recombinants. Therefore, they offered ideal conditions to investigate genetic processes and to interpret them in molecular terms. Many new methods were developed (e. g. CsCl density gradient centrifugation) and old techniques were im- proved and modified for new purposes (e. g. chemical mutagenesis). Hypotheses, such as the semiconservative replication of DNA, mutation by transition and trans- version and operon regulation, have had an extraordi- narily stimulating effect on the research in general genetics. Thus, in the past two decades, from the ge- netics of microbes (including fungi) the field of mo- lecular genetics developed. Many text books compete in presenting the latest knowledge on this subject. But to date there are only a few laboratory manuals which introduce the student of biology to the manifold ex- perimental techniques of microbial and molecular gene- tics. This laboratory manual is an attempt to redress the balance.

Bakterien-, Phagen-und Molekulargenetik (German, Microfilm): U. Winkler, W. Ruger, W Wackernagel Bakterien-, Phagen-und Molekulargenetik (German, Microfilm)
U. Winkler, W. Ruger, W Wackernagel
R2,163 Discovery Miles 21 630 Ships in 10 - 15 working days

Mitte der 40er Jahre wurden Bakterien und Phagen fUr die Genetik als geeignete Versuchsobjekte entdeckt. Genetische Phanomene, wie Mutation und Rekombination, die bei Eukaryonten schon lange bekannt waren, wurden jetzt auch bei Bakterien und Phagen sieher naeh- wiesen. Man fand neue Phanomene, wie beispielsweise die Lysogenie und die Transduktion, denen spater groGBPe Bedeutung zukam. Es wurde klar, daGBP Bakterien und Phagen dureh ihre Kleinheit, schnelle Vermehrungsfahigkeit, chemiseh-definierten WuchsansprUehe und die Anwendbar- keit vieler Selektivverfahren erstmals eine Chance boten, genetische Vorgange in naher Zukunft auf mole- kularem Niveau zu untersuchen und zu interpretieren. Viele neue Methoden wurden entwickelt (z. B. CsCl Gra- dientenzentrifugation) oder verfeinert und jetzt analytiseh eingesetzt (z. B. chemische Mutagenese). Hypothesen von auGBPerordentlich stimulierender Wirkung auf die allgemeine Genetik entstanden, wie die der semi- konservativen DNS-Replikation, der Mutation durch Transi- tion und Transversion und der Operon-Regulation. So ent- wiekelte sich aus der Mikrobengenetik der Nachkriegsjahre, die natUrlich aueh die niederen Pilze einschlieGBPt, die Molekulargenetik. Viele moderne LehrbUcher der Genetik wetteifern, die ErkenntnisfUlle up to date und Ubersicht- lich darzustellen. Aber es gibt kaum BUcher, die ver- suchen, den Biologie-Studenten auch experiment ell in das Gebiet der Mikroben- und Molekulargenetik einzufUhren. Das vorliegende Praktikumsbuch solI diese LUcke ver- kleinern.

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