a. Lwanowski b. Lord Lister c. Edward Jenner d. Beijerinck. About this Quiz & Worksheet. 7. I have treated THP1 and AGS cells for 12, 24 and 48 hours with a bacterial toxin concentrations 0, 5, 10, 20, 40, and 80 ug/ml. a) 24 hours b) 60 mins c) 2 mins d) 10-20 mins View Answer phase [D]. Both b and c 2. “Antagonism “ is seen in [A]. A ) Lethal genes B) Basic genes C) Multiple gene D) Cumulative gene These bring about the death their possessor. 23. Griffith's experiment, reported in 1928 by Frederick Griffith, was the first experiment suggesting that bacteria are capable of transferring genetic information through a process known as transformation. Transposition is the process in which a transposon excises from one location and integrates in another location within the same bacterial cell. Episome [B]. 3.2: Bacterial Quorum Sensing, Pathogenicity Islands, and Secretion Systems (Injectosomes) Study the material in this section and then write out the answers to these questions. Test your understanding regarding Bacteriology, Virology, Mycology … NEET MCQ on plasmid PDF:-Download the PDF Here. Our online bacteria trivia quizzes can be adapted to suit your requirements for taking some of the top bacteria quizzes. The points of attachment between homologous chromosomes after their separation in diplotene are called chiasmata. Griffith's findings were followed by research in the late 1930s and early 40s that isolated DNA as the material that communicated this genetic information. Figure: Bacterial Conjugation. A. Complementary B. 1. b ( Chloroquine) 2. c (Incorrect statement is: Both dogs and cats are intermediate host of Ascaris lumbricoides)3. c (Incorrect statement is: Kala-azar occurs primarily in rural latin America)4. d (Incorrect statement is: Hookworm infection can be diagnosed by finding the trophozoite in the stool)5. d (Incorrect statement is: T. vaginalis causes bloody diarrhea) 1. (c): Bacteria has no nuclear membrane hence it is called as nucleoid. (a) plasmid (b) selectable marker (c) structural gene (d) vector. b. transduction. Liable C. Competent D. Infected Answer & Explanation Answer: Option C 25. He was a bacteriologist who focused on epidemiology. Plasmid [C]. Bacterial Endospores (Structure, Characteristics, Significance, Formation and Germination of Bacterial Endospores) What are Endospores? 8. Also, solve other biological classification MCQ online. Initial steps to create recombinant plasmids are detailed in traditional cloning fundamentals, which includes the insertion of a desired DNA sequence into a vector backbone. The basic principles of Recombinant DNA Technology involve the stages like generation of DNA fragments and selection of the desired pieces of DNA, insertion of the selected DNA into a cloning vector i.e. a. Ederberg and Tatum b. Beadle and Tatum c. Griffith d. None of these. b. transduction. If two genes are closer to each other, they have better chance of being carried on the same piece of DNA, thus causing double transformation. plasmid, to create a recombinant DNA, Introduction of the recombinant vectors into host cells (e.g. This will not test your understanding of this tutorial. While extracting this DNA, some breakage into small pieces does take place. Transformation involves the exchange of naked DNA between donor and recipient in the absence of cell-to cell contact. The antiseptic method was first demon-strated by. c. ... What is the name of the process of bacterial DNA being transferred from one bacterium to another by a virus? d. vertical gene transfer. Answer and Explanation: 7. What is term used for a bacterial cell that is able to take up naked DNA? Bacterial Culture Media: classification, types and uses July 24, 2010 Acharya Tankeshwar Bacteriology , Culture Media used in Microbiology , Laboratory Diagnosis of Bacterial Disease 37 Culture media contains nutrients and physical growth parameters necessary for microbial growth. The human population has reached 7 billion by 2015 and is estimated to exceed 10 billion by the end of 2050. The transfer of genes from one cell to another by a bacteriophage is known as __________________ a) Recombination b) Conjugation c) Transduction d) Transformation 2. As such, crops which are the main food source must be produced at a higher pace in order to cater in tandem with the food demand. Tell him/her to do the same. Transformation is achieved through the uptake of naked DNA extracted from one strain of bacteria by another strain of bacteria. Although numerous examples of conjugative plasmids exist, conjugation involving the F plasmid is the most common. Log phase [D]. Read more Two DNA segments 2. Both a and b 4. Do not just click on the answers and write them out. Log phase [B]. DIY 1: Make two MCQ on biological classification and ask your friends to answers them. The first step was taken by Frederick Griffith in the year 1928. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Now I want to prove my … c. conjugation. 1. 1. D) transformation Ans: D. 23. A ) Lethal genes B) Basic genes C) Multiple gene D) Cumulative gene When two or more pairs of independent genes act together to produce… Biology MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. a) True b) False advertisement 3. Transformation means. Isoniazid is a primary antitubercular agent that (a) Requires pyridoxine supplementation (b) May discolor the tears, saliva, urine or feces orange­red (c) Causes ocular complications that are reversible if the drug is discontinued (d) May be ototoxic and nephrotoxic (e) Should never be used due to hepatotoxic potential 2. • DNA binding proteins transfer external DNA across cell envelope • bacterial cells capable of transformation are referred to as competent • homologous recombination can then occur In the past, traditional plant breeders practice classical breeding techniques to propagate plants with desirable traits. A comprehensive database of more than 72 bacteria quizzes online, test your knowledge with bacteria quiz questions. Griffith was studying how Streptococcus pneumoniae caused an infection. DIY 2: Create a table and find out the difference between systematic and Taxonomy. Free PDF Download of CBSE Biology Multiple Choice Questions for Class 12 with Answers Chapter 11 Biotechnology: Principles and Processes. 22. 13. A change from lysogeny to lysis is generally induced by A. ultraviolet light B. chemicals C. irradiation D. all of these Answer & Explanation Answer: Option A 20. Leeuwenhock d. Robert Koch. MCQ on Gene Regulation in Prokaryotes (Microbiology MCQ – 06) Dear Students, Welcome to Microbiology MCQ-06 (Gene Regulation in Prokaryotes).This MCQ set consists of Microbiology Multiple Choice Questions from the topic Gene Regulation in Prokaryotic Organisms – Operon Concept with Answer Key.These questions can be used for the preparation of all the competitive examinations in … Transformation: is the uptake of DNA fragments (originates from one bacterial cell) from the surroundings by a bacterial cell. Transformation Under the right conditions, bacteria can “take in” external DNA fragments (or plasmids) by transformation. Lag phase [C]. Quiz MicrobeOnline is the largest collections of Medical Microbiology MCQ online. Bacterial endospores are special tough, dormant and resistant spores produced by some Gram-positive bacteria of Firmicute family during unfavorable environmental conditions. Read more; Transduction: gene transfer in bacteria mediated by viruses (virus mediated gene transfer). Genophore is the bacterial chromosome. Broad-host-range conjugative plasmids have been used in molecular biology to introduce recombinant genes into bacterial species that are refractory to routine transformation or transduction methods. Answer Keys . e. replication. In our website, you will find several other course materials on biological classification m a) Hfr b) F-c) auxotrophic ... Transduction c) Transformation d) Vectoring Question 3 Which of the following terms describes the pattern of inheritance of chloroplast genomes? How much time is taken by the new DNA to make whole phage particles? Start studying BIO241 - MCQ 2 (Benzer and Conjugation In Bacteria). The fundamental genes that bring about expression of particular character. S strain organisms, when cultured in the lab, gave rise to bacterial colonies with a smooth appearance. B. transformation of cells C. syncytium formation D. rounding and aggregation of cells Answer & Explanation Answer: Option C 19. Which of the following gene helps in identifying transformed cells? MULTIPLE CHOICE QUESTIONS 1. Genophore/bacterial genome or nucleoid is made of (a) histones and nonhistones (b) RNA and histones (c) a single double stranded DNA (d) a single stranded DNA. None of these 3. the first phase of a growth curve is [A]. Multiple Choice Questions on . Transformation c) Conjugation d) Splicing ... Bacterial Artificial Chromosomes d) Yeast Intact chromosomes 12) Which of the following term is not true regarding restriction enzymes used in recombinant DNA technology a) They are site-specific Plasmids [C]. Lag phase [B]. Define virulence. The process of pairing of homologous chromosomes is called synapsis, transformation is process of gene trasfer in bacteria ,where exogenous genetic material is transferred from one bacrerial cell to another bacterial cell. A gene produced for recombinant DNA technology contains a gene from one organism joined to the regulatory sequence of another gene. Griffith Experiment. A. transformation B. lysogenic conversion C. conjugation D. transduction Answer & Explanation Answer: Option A 24. a. transformation. Colplasmid [D]. This set of Microbiology Multiple Choice Questions & Answers (MCQs) focuses on “Bacterial Recombination”. A recombinant DNA molecule is produced by joining together 1. one mRNA with a DNA segment 2. one mRNA with a tRNA segment 3. two mRNA molecules 4. Answer: B. Father of microbiology is. Bacterial transformation was discovered by. 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