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Key Stage 3 DNA Discoveries
Key Stage 3 Their conclusions were built on by later scientists, and gradually the understanding of DNA developed. DNA Discoveries Are scientists still researching DNA? Student worksheet Yes! All of the DNA in a human nucleus is called the genome. In What makes you, you? 2003, scientists finished an important project, the Human Genome Project, which deciphered the whole DNA code. The simple answer is DNA. This is a chemical Scientists around the world are using this information to work found in the nucleus of your cells. It is a code out what each section, called a gene, does. We now know the that tells your cells what proteins to make. genes that cause inherited diseases, can clone whole mammals These proteins are what give you your and even build artificial cells by creating new genomes. characteristics such as eye colour, blood group and if you have curly or straight hair. Your task You inherited your DNA from your parents - You are going to create a banner for your classroom that charts half from your father and half from your the timeline of DNA discoveries. mother, when an egg was fertilised by a 1. Work in a group of 2-4. sperm. This fertilised egg, which contained 2. Each group will be given one scientist to research, and some your unique DNA, divided to form the millions useful websites. of cells that make up you. 3. Fill in the information on your piece of DNA. How do we know all this? 4. When the timeline is complete, work as a class to put it in the correct order. -
Mobile DNA Elements in Shigella Flexneri and Emergence of An- Tibiotic Resistance Crisis
International Journal of Genomics and Data Mining Palchauduri S, et al. Int J Genom Data Min 01: 111. Research Article DOI: 10.29011/2577-0616.000111 Mobile DNA Elements in Shigella flexneri and Emergence of An- tibiotic Resistance Crisis Sunil Palchaudhuri1*, Anubha Palchaudhuri2, Archita Biswas2 1Department of Immunology and Microbiology, Wayne State University School of Medicine, Detroit, USA 2Atlanta Health Centre, Kolkata, India *Corresponding author: Sunil Palchaudhuri,Department of Immunology and Microbiology, Wayne State University School of Medicine, 540 E Canfield St, Detroit, MI 48201, USA. Tel: +13135771335; Email: [email protected] Citation:Palchaudhuri S, Palchaudhuri A, Biswas A (2017)Mobile DNA Elements in Shigella flexneri and Emergence of Antibiotic Resistance Crisis. Int J Genom Data Min 01: 111. DOI: 10.29011/2577-0616.000111 Received Date: 18October, 2017; Accepted Date: 23 October, 2017; Published Date: 30 October, 2017 Introduction F Plasmid-Lederberg’s Fertility factor F of E. coli K-12. Prokaryotic mobile DNA elements were initially observed by • 100 Kb. Nobel Prize Winner Professor Barbara McClintock in 1983. Both • ori F-origin of F plasmid replication. (With the sequence for IS and Tn elements are defined as mobile DNA elements capable dna A gene to function) of inserting into many different sites of a single chromosome or different chromosomes as discrete, non-permuted DNA segments • rep-replication functions. [1,2]. In 1952 Dr Joshua Lederberg (a noble prize winner of 1958) • IS-insertion sequence (IS2, IS3 and IS1copies present in the has shown the presence of such elements IS1, IS2, IS3 and Tn host E. coli K-12. -
Eighty Years of Fighting Against Cancer in Serbia Ovarian Cancer Vaccine
News Eighty years of fighting against cancer Recent study by Kunle Odunsi et al., Roswell Park Cancer Institute, Buffalo, in Serbia New York, USA, showed an effects of vaccine based on NY-ESO-1, a „cancer This year on December 10th, Serbian society for the fight against cancer has testis“ antigen in preventing the recurrence of ovarian cancer. NY-ESO-1 is a ovarian celebrated the great jubilee - 80 years of its foundation. The celebration took „cancer-testis“ antigen expressed in epithelial cancer (EOC) and is place in Crystal Room of Belgrade’s Hyatt hotel, gathering many distinguished among the most immunogenic tumor antigens defined to date. presence + guests from the country and abroad. This remarkable event has been held Author’s previous study point to the role of of intraepithelial CD8 - under the auspices of the President of Republic of Serbia, Mr. Boris Tadić. infiltrating T lymphocytes in tumors that was associated with improved survival of The whole ceremony was presided by Prof. Dr. Slobodan Čikarić, actual presi- patients with the disease. The NY-ESO-1 peptide epitope, ESO157–170, is recog- + + dent of Society, who greeted guests and wished them a warm welcome. Than nized by HLA-DP4-restricted CD4 T cells and HLA-A2- and A24-restricted CD8 + followed the speech of Serbian health minister, Prof. Dr. Tomica Milosavljević T cells. To test whether providing cognate helper CD4 T cells would enhance who pointed out the importance of preventive measures and public education the antitumor immune response, Odunsi et al., conducted a phase I clinical trial along with timely diagnosis and multidisciplinary treatment in global fight of immunization with ESO157–170 mixed with incomplete Freund's adjuvant + against cancer in Serbia. -
Date: To: September 22, 1 997 Mr Ian Johnston©
22-SEP-1997 16:36 NOBELSTIFTELSEN 4& 8 6603847 SID 01 NOBELSTIFTELSEN The Nobel Foundation TELEFAX Date: September 22, 1 997 To: Mr Ian Johnston© Company: Executive Office of the Secretary-General Fax no: 0091-2129633511 From: The Nobel Foundation Total number of pages: olO MESSAGE DearMrJohnstone, With reference to your fax and to our telephone conversation, I am enclosing the address list of all Nobel Prize laureates. Yours sincerely, Ingr BergstrSm Mailing address: Bos StU S-102 45 Stockholm. Sweden Strat itddrtSMi Suircfatan 14 Teleptelrtts: (-MB S) 663 » 20 Fsuc (*-«>!) «W Jg 47 22-SEP-1997 16:36 NOBELSTIFTELSEN 46 B S603847 SID 02 22-SEP-1997 16:35 NOBELSTIFTELSEN 46 8 6603847 SID 03 Professor Willis E, Lamb Jr Prof. Aleksandre M. Prokhorov Dr. Leo EsaJki 848 North Norris Avenue Russian Academy of Sciences University of Tsukuba TUCSON, AZ 857 19 Leninskii Prospect 14 Tsukuba USA MSOCOWV71 Ibaraki Ru s s I a 305 Japan 59* c>io Dr. Tsung Dao Lee Professor Hans A. Bethe Professor Antony Hewlsh Department of Physics Cornell University Cavendish Laboratory Columbia University ITHACA, NY 14853 University of Cambridge 538 West I20th Street USA CAMBRIDGE CB3 OHE NEW YORK, NY 10027 England USA S96 014 S ' Dr. Chen Ning Yang Professor Murray Gell-Mann ^ Professor Aage Bohr The Institute for Department of Physics Niels Bohr Institutet Theoretical Physics California Institute of Technology Blegdamsvej 17 State University of New York PASADENA, CA91125 DK-2100 KOPENHAMN 0 STONY BROOK, NY 11794 USA D anni ark USA 595 600 613 Professor Owen Chamberlain Professor Louis Neel ' Professor Ben Mottelson 6068 Margarldo Drive Membre de rinstitute Nordita OAKLAND, CA 946 IS 15 Rue Marcel-Allegot Blegdamsvej 17 USA F-92190 MEUDON-BELLEVUE DK-2100 KOPENHAMN 0 Frankrike D an m ar k 599 615 Professor Donald A. -
Har Gobind Khorana a Spearhead in Biochemistry, Who Through His Extensive Conviction and Vision, Rose to Be an Icon in the Field of Molecular Biology
A SENSE OF PRIDE ARTICLE- 17 An Absolute Pioneer: Har Gobind Khorana A spearhead in biochemistry, who through his extensive conviction and vision, rose to be an icon in the field of molecular biology. A modest individual and a humanitarian, he is an inspiration for our youth in more ways than one. orn on 9 January 1922 Marshall W. Nirenberg and A list of his in Punjab, Robert W. Holley. Har Gobind Khorana Har Gobind Khorana was one Achievements came from a humble of the firsts to write about the include: Bbackground. He completed concept of gene manipulation. his schooling from DAV High In 1970, he got associated with 1968 School, Multan. He obtained the Massachusetts Institute The Nobel Prize his Bachelor’s degree and of Technology, switching to Master of Science degree from working on membranes and 1968 the Punjab University, Lahore, signal transduction, and worked Albert Lasker Basic Medical CONTRIBUTION wherein he received accolades on them till his retirement in Research Award Call in many scholarships. He, later, 2007. won a Fellowship to pursue his Intrinsically a deep thinker, 1974 PhD in Chemistry of Melanins, he gave much importance to Willard Gibbs Medal of in the year 1948, from the the subjects of fundamental the Chicago section of the If you want to University of Liverpool (UK). The importance, barring the time American Chemical Society contribute content in DAV United following year, he completed constraint for a problem to Article Series his Postdoctoral studies at be solved. He firmly believed 1980 please share 500 words content and ETH Zurich, Switzerland. -
Download Ps Nobel Prizes for Site BEE 11.18.16 Revised 11.30.17.Pdf
Nobel Laureates at the College of Physicians and Surgeons For years, College of Physicians and Surgeons alumni, faculty, and researchers have led groundbreaking clinical and basic scientific studies that have transformed our understanding of human biology and advanced the practice of medicine. On many occasions, this work has been honored with the Nobel Prize. The scope of research led by P&S Nobel laureates is tremendous. Although most of our prizewinners were honored for work in physiology or medicine, a few also received the prize for chemistry. Their research has fundamentally shaped the course of numerous fields, including cardiology, neuroscience, genetics, pharmaceutical development, and more. Our Nobel laureates include: André Cournand and Dickinson Richards (P&S’23), whose work at P&S on cardiac catheterization—a method of inserting a tiny tube into the heart—provided the basis for open-heart surgery and interventional cardiology Baruch Blumberg (P&S’51), who discovered the hepatitis B virus and helped develop a test and a vaccine for the virus Joshua Lederberg, a Columbia College and P&S graduate student who showed that bacteria can exchange genes when they reproduce, creating a way to model and study genetics in higher organisms Harold Varmus (P&S’66), who demonstrated how genes in normal human and animal cells can mutate to cause cancer, leading to a new generation of research on the genetic origins of cancer Eric Kandel, current University Professor, who showed how memories are stored in nerve cells, greatly enhancing -
National Conference on Science and the Law Proceedings
U.S. Department of Justice Office of Justice Programs National Institute of Justice National Conference on Science and the Law Proceedings Research Forum Sponsored by In Collaboration With National Institute of Justice Federal Judicial Center American Academy of Forensic Sciences National Academy of Sciences American Bar Association National Center for State Courts NATIONAL CONFERENCE ON SCIENCE AND THE LAW Proceedings San Diego, California April 15–16, 1999 Sponsored by: National Institute of Justice American Academy of Forensic Sciences American Bar Association National Center for State Courts In Collaboration With: Federal Judicial Center National Academy of Sciences July 2000 NCJ 179630 Julie E. Samuels Acting Director National Institute of Justice David Boyd, Ph.D. Deputy Director National Institute of Justice Richard M. Rau, Ph.D. Project Monitor Opinions or points of view expressed in this document are those of the authors and do not necessarily reflect the official position of the U.S. Department of Justice. The National Institute of Justice is a component of the Office of Justice Programs, which also includes the Bureau of Justice Assistance, Bureau of Justice Statistics, Office of Juvenile Justice and Delinquency Prevention, and Office for Victims of Crime. Preface Preface The intersections of science and law occur from crime scene to crime lab to criminal prosecution and defense. Although detectives, forensic scientists, and attorneys may have different vocabularies and perspectives, from a cognitive perspective, they share a way of thinking that is essential to scientific knowledge. A good detective, a well-trained forensic analyst, and a seasoned attorney all exhibit “what-if” thinking. This kind of thinking in hypotheticals keeps a detective open-minded: it prevents a detective from ignoring or not collecting data that may result in exculpatory evidence. -
Joshua Lederberg 1925–2008
OBITUARY Joshua Lederberg 1925–2008 James F Crow Joshua Lederberg died on February 2, 2008. Although the immediate around the computer. Meanwhile, he founded a Medical Genetics cause was pneumonia, he had been troubled by a bad back for some Department at Wisconsin, with the then-novel idea that the subject time. With his originality and breadth and depth of knowledge, he involves the genetics of our parasites as well as of ourselves. Another was one of the greatest scientists of the century. indication of his breadth is the active role he played in developing the His precocious intelligence was apparent at an early age, as was his Genetics Citation Index. interest in science. The work that made him famous was begun while In the late 1950s, it was becoming apparent that he was consider- he was a medical student at Columbia University, still in his teens. He ing broader horizons, and in 1959, he moved to found a genetics was inspired by Oswald Avery’s argument for the genetic significance department at Stanford. Although he continued research in bacterial of DNA and by his own observation that antigenic types in Salmonella genetics, the novelty was wearing off. He became more and more seemed to be permutational. Having become convinced that bacteria interested in broader issues and in world problems. He enlisted Carl undergo genetic recombination and deciding that the best labora- Sagan, whom he had met in Wisconsin, to consider space exploration tory in which to further investigate this phenomenon was that of and the search for extraterrestrial signs of life. -
Tata Institute of Fundamental Research Prof
Annual Report 1988-89 Tata Institute of Fundamental Research Prof. M. G. K. Menon inaugurating the Pelletron Accelerator Facility at TIFR on December 30, 1988. Dr. S. S. Kapoor, Project Director, Pelletron Accelerator Facility, explaining salient features of \ Ion source to Prof. M. G. K. Menon, Dr. M. R. Srinivasan, and others. Annual Report 1988-89 Contents Council of Management 3 School of Physics 19 Homi Bhabha Centre for Science Education 80 Theoretical Physics l'j Honorary Fellows 3 Theoretical A strophysics 24 Astronomy 2') Basic Dental Research Unit 83 Gravitation 37 A wards and Distinctions 4 Cosmic Ray and Space Physics 38 Experimental High Energy Physics 41 Publications, Colloquia, Lectures, Seminars etc. 85 Introduction 5 Nuclear and Atomic Physics 43 Condensed Matter Physics 52 Chemical Physics 58 Obituaries 118 Faculty 9 Hydrology M Physics of Semi-Conductors and Solid State Electronics 64 Group Committees 10 Molecular Biology o5 Computer Science 71 Administration. Engineering Energy Research 7b and Auxiliary Services 12 Facilities 77 School of Mathematics 13 Library 79 Tata Institute of Fundamental Research Homi Bhabha Road. Colaba. Bombav 400005. India. Edited by J.D. hloor Published by Registrar. Tata Institute of Fundamental Research Homi Bhabha Road, Colaba. Bombay 400 005 Printed bv S.C. Nad'kar at TATA PRESS Limited. Bombay 400 025 Photo Credits Front Cover: Bharat Upadhyay Inside: Bharat Upadhyay & R.A. A chary a Design and Layout by M.M. Vajifdar and J.D. hloor Council of Management Honorary Fellows Shri J.R.D. Tata (Chairman) Prof. H. Alfven Chairman. Tata Sons Limited Prof. S. Chandrasekhar Prof. -
From Controlling Elements to Transposons: Barbara Mcclintock and the Nobel Prize Nathaniel C
454 Forum TRENDS in Biochemical Sciences Vol.26 No.7 July 2001 Historical Perspective From controlling elements to transposons: Barbara McClintock and the Nobel Prize Nathaniel C. Comfort Why did it take so long for Barbara correspondence. From these and other to prevent her controlling elements from McClintock (Fig. 1) to win the Nobel Prize? materials, we can reconstruct the events moving because their effects were difficult In the mid-1940s, McClintock discovered leading up to the 1983 prize*. to study when they jumped around. She genetic transposition in maize. She What today are known as transposable never had any inclination to pursue the published her results over several years elements, McClintock called ‘controlling biochemistry of transposition. and, in 1951, gave a famous presentation elements’. During the years 1945–1946, at Current understanding of how gene at the Cold Spring Harbor Symposium, the Carnegie Dept of Genetics, Cold activity is regulated, of course, springs yet it took until 1983 for her to win a Nobel Spring Harbor, McClintock discovered a from the operon, François Jacob and Prize. The delay is widely attributed to a pair of genetic loci in maize that seemed to Jacques Monod’s 1960 model of a block of combination of gender bias and gendered trigger spontaneous and reversible structural genes under the control of an science. McClintock’s results were not mutations in what had been ordinary, adjacent set of regulatory genes (Fig. 2). accepted, the story goes, because women stable alleles. In the term of the day, they Though subsequent studies revealed in science are marginalized, because the made stable alleles into ‘mutable’ ones. -
The Nobel Prize in Physiology Or Medicine 2007
PRESS RELEASE 2007-10-08 The Nobel Assembly at Karolinska Institutet has today decided to award The Nobel Prize in Physiology or Medicine 2007 jointly to Mario R. Capecchi, Martin J. Evans and Oliver Smithies for their discoveries of “principles for introducing specific gene modifications in mice by the use of embryonic stem cells” SUMMARY This year’s Nobel Laureates have made a series of ground-breaking discoveries concerning embryonic stem cells and DNA recombination in mammals. Their discoveries led to the creation of an immensely powerful technology referred to as gene targeting in mice. It is now being applied to virtually all areas of biomedicine – from basic research to the development of new therapies. Gene targeting is often used to inactivate single genes. Such gene “knockout” experiments have elucidated the roles of numerous genes in embryonic development, adult physiology, aging and disease. To date, more than ten thousand mouse genes (approximately half of the genes in the mammalian genome) have been knocked out. Ongoing international efforts will make “knockout mice” for all genes available within the near future. With gene targeting it is now possible to produce almost any type of DNA modification in the mouse genome, allowing scientists to establish the roles of individual genes in health and disease. Gene targeting has already produced more than five hundred different mouse models of human disorders, including cardiovascular and neuro-degenerative diseases, diabetes and cancer. Modification of genes by homologous recombination Information about the development and function of our bodies throughout life is carried within the DNA. Our DNA is packaged in chromosomes, which occur in pairs – one inherited from the father and one from the mother. -
Cover June 2011
z NOBEL LAUREATES IN Qui DNA RESEARCH n u SANGRAM KESHARI LENKA & CHINMOYEE MAHARANA F 1. Who got the Nobel Prize in Physiology or Medicine 1933) for discovering the famous concept that says chromosomes carry genes? a. Gregor Johann Mendel b. Thomas Hunt Morgan c. Aristotle d. Charles Darwin 5. Name the Nobel laureate (1959) for his discovery of the mechanisms in the biological 2. The concept of Mutations synthesis of ribonucleic acid and are changes in genetic deoxyribonucleic acid? information” awarded him a. Arthur Kornberg b. Har Gobind Khorana the Nobel Prize in 1946: c. Roger D. Kornberg d. James D. Watson a. Hermann Muller b. M.F. Perutz c. James D. Watson 6. Discovery of the DNA double helix fetched them d. Har Gobind Khorana the Nobel Prize in Physiology or Medicine (1962). a. Francis Crick, James Watson, Rosalind Elsie Franklin b. Francis Crick, James Watson and Maurice Willkins c. James Watson, Maurice Willkins, Rosalind Elsie Franklin 3. Identify the discoverer and d. Maurice Willkins, Rosalind Elsie Franklin and Francis Crick Nobel laureate of 1958 who found DNA in bacteria and viruses. a. Louis Pasteur b. Alexander Fleming c. Joshua Lederberg d. Roger D. Kornberg 4. A direct link between genes and enzymatic reactions, known as the famous “one gene, one enzyme” hypothesis, was put forth by these 7. They developed the theory of genetic regulatory scientists who shared the Nobel Prize in mechanisms, showing how, on a molecular level, Physiology or Medicine, 1958. certain genes are activated and suppressed. Name a. George Wells Beadle and Edward Lawrie Tatum these famous Nobel laureates of 1965.