bacterial growth mcq 1. Plasmid [C]. The genetic material is referred to as genophore. The final outcome of this process is production of multiple copies of a recombinant DNA molecule. DIY 1: Make two MCQ on biological classification and ask your friends to answers them. 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. Also, solve other biological classification MCQ online. Transformation: is the uptake of DNA fragments (originates from one bacterial cell) from the surroundings by a bacterial cell. Multiple antibiotic resistance is mediated by [A]. Students can solve NCERT Class 12 Biology Biotechnology: Principles and Processes MCQs Pdf with Answers to know … Log phase [B]. 1. Answer and Explanation: 7. Staff Nurse Exam MCQ on AntiBiotics Objective Questions 1. 23. a. Ederberg and Tatum b. Beadle and Tatum c. Griffith d. None of these. Later this gets integrated into the bacterial genome. Answer Keys . Microbial degradation of linuron (Hicks et al., 1990) and pencycuron (Pal et al., 2005b) in nonsterile soils was stimulated by organic matter amendment. Transformation is achieved through the uptake of naked DNA extracted from one strain of bacteria by another strain of bacteria. 13. a. Louis Pasteur b. Lister c. A.V. (c): Bacteria has no nuclear membrane hence it is called as nucleoid. 1. 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. Griffith was studying how Streptococcus pneumoniae caused an infection. Our online bacteria trivia quizzes can be adapted to suit your requirements for taking some of the top bacteria quizzes. Log phase [D]. A ) Lethal genes B) Basic genes C) Multiple gene D) Cumulative gene When two or more pairs of independent genes act together to produce… 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. 1. d. vertical gene transfer. Plasmids [C]. 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. phase [D]. Now I want to prove my … Tell him/her to do the same. The addition of organic materials to flooded soils enhanced the bacterial degradation of some organochlorine insecticides such as BHC, DDT, methoxychlor and heptachlor (Yoshida, 1978). How much time is taken by the new DNA to make whole phage particles? 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) 25. 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. 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. What is term used for a bacterial cell that is able to take up naked DNA? 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. Father of microbiology is. a. transformation. The antiseptic method was first demon-strated by. 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. A gene produced for recombinant DNA technology contains a gene from one organism joined to the regulatory sequence of another gene. 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. Read more; Transduction: gene transfer in bacteria mediated by viruses (virus mediated gene transfer). Transformation involves the exchange of naked DNA between donor and recipient in the absence of cell-to cell contact. Colplasmid [D]. Figure: Bacterial Conjugation. Genophore is the bacterial chromosome. He was working with 2 strains of the bacteria called the S and R strains. None of these 3. the first phase of a growth curve is [A]. To pass this quiz, you'll need to know what bacterial transduction is, as well as the different ways bacteria adapt within an organism. Define virulence. In our website, you will find several other course materials on biological classification m Lag phase [B]. Transposition is the process in which a transposon excises from one location and integrates in another location within the same bacterial cell. 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. The transfer of genes from one cell to another by a bacteriophage is known as __________________ a) Recombination b) Conjugation c) Transduction d) Transformation 2. Bacterial Endospores (Structure, Characteristics, Significance, Formation and Germination of Bacterial Endospores) What are Endospores? Episome [B]. The human population has reached 7 billion by 2015 and is estimated to exceed 10 billion by the end of 2050. a. Lwanowski b. Lord Lister c. Edward Jenner d. Beijerinck. Read more This set of Microbiology Multiple Choice Questions & Answers (MCQs) focuses on “Bacterial Transduction”. A. formation of a pilus B. acquiring DNA from the bacterial cell environment C. plasmid containing a F factor D. F+ and F- strains of bacteria. Free PDF Download of CBSE Biology Multiple Choice Questions for Class 12 with Answers Chapter 11 Biotechnology: Principles and Processes. c. ... What is the name of the process of bacterial DNA being transferred from one bacterium to another by a virus? MULTIPLE CHOICE QUESTIONS 1. b. transduction. Answer: B. 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. 24. Both b and c 2. “Antagonism “ is seen in [A]. a) 24 hours b) 60 mins c) 2 mins d) 10-20 mins View Answer While extracting this DNA, some breakage into small pieces does take place. Define pathogenicity. The points of attachment between homologous chromosomes after their separation in diplotene are called chiasmata. A. transformation B. lysogenic conversion C. conjugation D. transduction Answer & Explanation Answer: Option A 24. One of the key processes in molecular cloning is bacterial transformation. Griffith Experiment. Test your understanding regarding Bacteriology, Virology, Mycology … (a) plasmid (b) selectable marker (c) structural gene (d) vector. 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. Biology MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. Bacterial endospores are special tough, dormant and resistant spores produced by some Gram-positive bacteria of Firmicute family during unfavorable environmental conditions. 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? This set of Microbiology Multiple Choice Questions & Answers (MCQs) focuses on “Bacterial Recombination”. 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. c. conjugation. b. transduction. 2. Transformation means. Which of the following gene helps in identifying transformed cells? Learn vocabulary, terms, and more with flashcards, games, and other study tools. B. transformation of cells C. syncytium formation D. rounding and aggregation of cells Answer & Explanation Answer: Option C 19. Leeuwenhock d. Robert Koch. 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 This will not test your understanding of this tutorial. A. Complementary B. Quiz MicrobeOnline is the largest collections of Medical Microbiology MCQ online. A. allows comparison between DNA molecules without the need to determine nucleotide sequence 8. S strain organisms, when cultured in the lab, gave rise to bacterial colonies with a smooth appearance. Although numerous examples of conjugative plasmids exist, conjugation involving the F plasmid is the most common. 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. 7. However, DNA transformation is sensitive to DNase treatment. a. transformation. Endospores are developed within the vegetative cells (hence the name, endo = inside). Restriction enzymes A) cut donor DNA evenly so smooth edges result B) cut donor DNA but do not affect plasmids C) make staggered cuts at specific sequences in DNA in both donor DNA and plasmid D) are used to incorporate plasmids into bacterial host cells Ans: C. 24. Both a and b 4. 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. In the past, traditional plant breeders practice classical breeding techniques to propagate plants with desirable traits. Start studying BIO241 - MCQ 2 (Benzer and Conjugation In Bacteria). A comprehensive database of more than 72 bacteria quizzes online, test your knowledge with bacteria quiz questions. 12. • DNA binding proteins transfer external DNA across cell envelope • bacterial cells capable of transformation are referred to as competent • homologous recombination can then occur The fundamental genes that bring about expression of particular character. Transformation Under the right conditions, bacteria can “take in” external DNA fragments (or plasmids) by transformation. a) True b) False advertisement 3. NEET MCQ on plasmid PDF:-Download the PDF Here. Do not just click on the answers and write them out. Group study helps! He was a bacteriologist who focused on epidemiology. D) transformation Ans: D. 23. Liable C. Competent D. Infected Answer & Explanation Answer: Option C 25. Which of the following terms describes a bacterial cell that has lost its ability to synthesize leucine? plasmid, to create a recombinant DNA, Introduction of the recombinant vectors into host cells (e.g. e. replication. Two DNA segments 2. Restriction maps. Lag phase [C]. DIY 2: Create a table and find out the difference between systematic and Taxonomy. About this Quiz & Worksheet. The first step was taken by Frederick Griffith in the year 1928. Genetic recombination occurs between homologous chromosomes. Bacterial transformation was discovered by. 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