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Genetically modified organisms(GMOs)

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Genetically modified organisms(GMOs)

  1. 1. PRESENTED BY: SUMEENA KARKI FIRST SEMESTER CDBT,KIRTIPUR KATHMANDUDATE:31st JULY,2015 1
  2. 2. Organisms (i.e. plants, animals or micro organisms) in which its genetic material (mainly DNA) has been changed or altered. Not naturally by mating and/or recombination Selected genes transferred also between non related species  also called as “modern biotechnology” or “gene technology” or “recombinant DNA technology” or “genetic engineering” The first GMOs were bacteria in 1973 2
  3. 3. 840 m people: surviving on fewer than 8000 kJ/ Da 1.3 b people earn: <US$1/day 3
  4. 4. 4O Years by which world’s population is predicted to double
  5. 5. 4O % Number by which food production must increase
  6. 6. 6
  7. 7. 7 Examples
  8. 8. 8
  9. 9.  Bacteria and Fungi  Various vitamins(Vitamin B2 , vitamin C)and amino acids (glutamate, aspartame , cysteine ,etc)  Numerous enzymes used in foods and medicinal purposes  Bioremediation(by Suicidal GEMs )-Exxon Oil Company to patent an oil-eating microorganism in 1980.  Biofuels  GE drugs(Genentech's Humulin in 1982) 9 bacteria yeast Biofuel
  10. 10. • Herbicide resistance • Now banned  85% in U.S and 59% in Europe 10
  11. 11. • Consists vitamin A • Golden rice2 ( In 2003)-23 times more carotenoides • Yellow color is due to plant enzyme converts Lycopene to B- carotenoides • Began in 2008 in U.S • Glycophosphate herbicide tolerant • Restricted for cultivation 11
  12. 12. • Improved rapeseed free of eonucic acid and glucosinolates • Raw material for biodiesel, industrial oils and lubricants • Grown in Canada and Europe • New variety contains vitamin A • GM called as “ Canadian oil” which is edible 12
  13. 13. • Genes incorporated coding for Bt toxin(produced by Bacillus thuringiensis) • Natural insecticide • Bt cotton first produced by China • India second largest producer of cotton 13
  14. 14. 14
  15. 15. • First commercially granted license by FDA for human consumption(1987) • In 1994, California based company by adding antisense gene. • Sort of market in 1997 due to its delicacy, shipping problem and off taste 15 •Scorpion poison •Kills caterpillars •Toxic modified ,not harmful for humans
  16. 16. • Mice generated in 1974 • Cats -In 2007 by South Korean scientists • Viruses for inserting red fluorescent protein • To make animals with human genetic diseases • In 1999 by Dr. Zhiyuan and his colleagues at National university of Singapore • Green fluorescent protein of jelly fish into Zebra fish • Bioluminescence • Detect pollution in presence of toxins • First GMO animal as pet publically 16
  17. 17.  University of Alberta  Bacterium that reduces 25% methane (methane being 2nd major contributor of green house effect after co2)  Also called Franken swine  E. coli bacteria and mouse DNA to pigs embryo  Decrease output of phosphorous by 70% 17
  18. 18. 18  GE Atlantic salmon  Gene from ‘ocean pout’  On switch for the  hormones  Nexia biotechnologies in 2000  Spider’s dragline silk gene  “Biosteel”-7 to 10 times strong as steel  Artificial ligaments, tendons, jaw repair, bullet proof vests, car air bags  30 spider goats present
  19. 19.  Australian pines-freezing temperature  Loblolly pines-less lignin  Colorado pines-change color to biological/chemical attack  Poplar trees-Pollution fighting (91% of tricycloethane)  Paper tree  Land mines detecting plants (detect nitrogen dioxide) > Consists of miR24 and human interferon b-1a > Malignant melanoma, arthritis and multiple sclerosis 19 Poplar plant Paper tree ArborGen farm
  20. 20.  Altered form of virus  Cells produce virus proteins  Hepatitis B and Cholera  Seeding cow cartilage cells into biodegradable ear-shaped mould  Dr. Charles Vacanti, University of Massachusetts in 1995  Transplantation into humans 20
  21. 21.  Controversies of dissecting animals(April 2000, Germany)  Bared-skinned Chicken as a part of research project  Hebrew University by Israeli scientist(May22,2002) 21
  22. 22.  Lemurat-cross between Lemur and Cat  Dolion- Dog and Lion( Panthera leo)  Tiglon- Tiger(male) and Lioness  Liger-Lion and Tigress (P. tigris) 22 TiglonDolion Liger
  23. 23.  Ponga fern (Cyathea dealbata) and Italian wolf spider( Lycosa tarantula)  Massey University, New Zealand  Study survival rates(camouflage v/s natural selection)  Designed for Practical reason in Zimbabwe  Unlock dormant “flying” strand in DNA  Believed to lost flying ability millions years ago  Till now 6 are produced and kept separate 23
  24. 24. 24  In 2002 Monsanto company (US and Canada)-approval for herbicide resistant GM wheat. 2 yrs later withdrew application so now abandoned  Can cause allergy(400%)  Can affect food chain  Emergence of new diseases  Risk of cross breading(loss of wild species)
  25. 25. 25
  26. 26.  www. ncbi.nlm.nih.gov/ pubmed/16923539  www. listverse.com/top-10-bizzare-gmos  www. ncbi. nlm.nih.gov/genome/doc  http://americanradioworks.publicradio.org/features/ gmos_india/history.html 26
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