12) Transformation is the transfer of DNA from a donor to a recipient cell. STUDY. Microorganisms have the ability to acquire genes and thereby undergo the process of recombination. A) They will both remain the same. What is the sequence of amino acids encoded by the following sequence of bases in a strand of DNA? 15) The initial effect of ionizing radiation on a cell is that it causes. This involves both discovering the regulatory genes and sites that control individual gene expression and determining which genes are coregulated and, thus, likely to participate in the same process. B) The leading strand of DNA is made continuously. C) restriction enzyme. A) RNA polymerase. E) prevents mRNA-ribosome binding. C) transfers DNA horizontally, to cells in the same generation. Retrieved from https://phdessay.com/microbiology-an-introduction-to-microbial-genetics/, Microbiology: An Introduction to Microbial Genetics. A) allosteric transition. OBJECTIVE 1. Microbial genetics: theoretical basis and introduction to practical applications. A) are found in prokaryotic cells. Some of these differences have allowed us to engineer clinical tools such as antibiotics and antiviral drugs that specifically inhibit the reproduction of pathogens yet are harmless to their hosts. Microbial genetics. Explain why the following statement is false: Sexual reproduction is the only mechanism for genetic change. Summary … Download full paper File format: .doc, available for editing. Cell structures and metabolic processes are specified by genes. Learn. 17) The synthesis of a repressible enzyme is stopped by the. A) a new strand of DNA B) rRNA C) tRNA D) mRNA E) None of the answers are correct; all of these are products of transcription. E) primase. C) bind to the corepressor. Learn vocabulary, terms, and more with flashcards, games, and other study tools. B) DNA ligase. 5) Which of the following is NOT a product of transcription? B) prevents translation in eukaryotes. 2) Open-reading frames are segments of DNA in which both start and stop codons are found. Comments (0) Add to wishlist Delete from wishlist. D) operator. D) a sequence of nucleotides in RNA that codes for a functional product. Introduction to Modern Applications of Microbial Genetics Watson and Crick ’s identification of the structure of DNA in 1953 was the seminal event in the field of genetic engineering. 7) Both base substitution and frameshift mutations can result in the formation of premature stop codons. 9) Transposition results in the formation of base substitution mutations in a cell’s DNA. D) cut out and replaced. Author(s) : Guiraud, J. P. Author Affiliation : Institut des Sciences de l'Ingénieur, Université Montpellier II, Montpellier, France 5, which model of the lac operon correctly shows RNA polymerase, lactose, and repressor protein when the structural genes are being transcribed? E) UV radiation. B) repaired during transcription. Scholars In recombination, a new chromosome with a genotype different from that of the parent results from the combination of genetic material from two organisms. We use cookies to give you the best experience possible. E) None of the answers is correct. 21) The damage caused by ultraviolet radiation is. B) have introns. C) DNA helicase. 3, if enzyme A is an inducible enzyme. The Levels of Structure and Function of the Genome; Genetics: study of inheritance, or heredity, of living things. These are examples of biofilms—microorganisms embedded in thin layers of matrix material (Figure 1). A) compound C would bind to the repressor. D) repression. Created by. C) It is resistant to certain drugs and heavy metals. This science is concerned with the activity of deoxyribonucleic acid (DNA) and how that activity brings about the production of proteins in microbial … Introduction to Genetic 2. 3, if enzyme A is a repressible enzyme, compound C would. 2. the lecture notes before coming to class. D) It is F+. In 1954, French scientist and future Nobel laureate Jacques Monod (1910–1976) famously said, “What is true in E. coli is true in the elephant,” suggesting that the biochemistry of life was maintained throughout evolution and is shared in all forms of known life. The Microbial Genetics Construction Kit (Jungck & Calley, 1986) was developed to help students understand auxanography, complementation mapping, and point mutation mapping. Microbiology: An Introduction, 12e (Tortora) Chapter 8 Microbial Genetics 8.1 Multiple-Choice Questions 1) A gene is best defined as A) any random segment of DNA. D) competitive inhibition. 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