Transforming principle Guides d'étude, Notes de cours & Résumés

Griffith's Transformation Experiment - S-strain: smooth, virulent - R-strain: rough, non-virulent - heat killed S-strain: non-virulent - heat killed S-strain + R-strain: virulent - live cells could be recovered form dead mice, living R-cells "transformed" by dead S-cells Avery, MacLeod & McCarty determined that DNA is the transforming principle Hershey & Chase - used radioactive material to label DNA and protein ->infected bacteria passed on DNA - helped prove that DNA is genetic materia...

A. Cost B. Utility C. Warranty D. Risk - Answer- A. Incorrect. Cost is "The amount of money spent on a specific activity or resource." Ref 2.5.2 B. Correct. Utility is "The functionality offered by a product or service." Ref 2.5.4 C. Incorrect. Warranty is "Assurance that a product or service will meet agreed requirements". Ref 2.5.4 D. Incorrect. A risk is "A possible event that could cause harm or loss, or make it more difficult to achieve objectives". Ref 2.5.3 5) How d...

Molecular Genetics - Exam 1 Questions & 100% Correct Answers Molecular Genetics - Exam 1 Questions & 100% Correct Answers Gregor Mendel (1865-1866) - ANSWER- Using pea plants he observed what he called the Laws of Heredity: 1. Law of Segregation - there is one gene per sex cell, so we have to genes, one from each parent. 2. Law of Independent Assortment - traits are inherited independently, found to be untrue for all (linkage). 3. Law of Dominance - there are recessive and dominant traits...

BIOL 1220L Foundations Quiz 3 Study Guide Questions And Answers 2024 A+ *Intro to Genetic Transformation (Week 8), Genetic Transformation Protocol (Week 9) and Genetic Transformation Results (Week 10). *Please note that there will be no questions on positive and negative controls or blue/white selection involving the lacZ gene (Intro to Genetic Transformation PowerPoint Slide 8). What bacteria did Griffith use to discover genetic transformation? - ANS-Streptococcus pneuomoniae Which s...

ITIL 4 EXAM QUESTIONS & ANSWERS, 100% ACCURATE. GRADED A+ 2) Which term describes the functionality offered by a service? A. Cost B. Utility C. Warranty D. Risk - A. Incorrect. Cost is "The amount of money spent on a specific activity or resource." Ref 2.5.2 B. Correct. Utility is "The functionality offered by a product or service." Ref 2.5.4 C. Incorrect. Warranty is "Assurance that a product or service will meet agreed requirements". Ref 2.5.4 D. Incorrect. A risk is "A p...

Griffith - transforming principle - streptococcus pneumonia - virulent strain has polysaccharide coat, have smooth coat (S) - R= rough, avirulent (lack coat) - some R could become S spontaneously Avery, MacLeod, McCarty - isolated transforming principle - destroyed different components, one at a time, to pinpoint which component was responsible for transforming DNA - found that DNA contained genetic material Hershey and Chase - T2 bacteriophage - radioactivity - protein ...

Explain the principle difference between HRM and HRD correct answers HRM is: Utlization Planning HRD is a part of HRM. -Staffing -HR Planning -Compensation and Benefits -Employee Relations -Equal Employment Opportunity -Health, Safety, and Security What are the primary components within the HRD field? What does each involve? correct answers HRD is: It is not HRM. The set of systematic and planned activities designed by an organization to provide it's members with the opportunities...

What is a Transforming Infection? Virus that alters cell DNA, leading to cancer What is a lysogenic infection? Phage DNA is incorporated into host genome and is passed on to subsequent generations What is a Lytic Bacteriophage Infection? Host cell gets so packed with viruses that is lyses (splits) open and releases mature virions What are the three principle purposes of cultivating viruses? 1.) Isolate and ID viruses in clinical specimens 2.) Prepare viruses for vaccine...

What does DNA store? - correct answer hereditary information Combining the work of other scientists with their own research, Watson and Crick discovered that two strands of DNA join together to form a(n) __________? - correct answer Double helix What are the two strands of a DNA molecule are held together by? - correct answer Hydrogen bonds An important factor in Oswald Avery's ability to identify the "transforming principle" as DNA was the fact that proteins __________? - cor...

Describe the work of Fred Griffith- studied 2 strains of strep 1) S strain- appeared smooth and was virulent 2) R strain- 'rough' in appearance and avirulent - There are several variants of the strains (IIS,IIIS,IIR,IIIR) - IIS can mutate to IIR, but never to IIIR, IIIS mutated to IIIR but never IIR. -When type R injected in mice it survives -When type S injected into mice it dies - However when heat killed IIIS and IIR injected into mice they died and IIIS was recovered -Conclusion w...