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Mendel

  1. 1. GREGOR MENDEL A small discussion
  2. 2. INTRODUCTION <ul><li>He was born on July 20 ,1982 </li></ul><ul><li>He was born in Heinzendorf </li></ul><ul><li>Parents Anton-Rosie Mendel </li></ul><ul><li>He is called the “ Father of Genetics ” </li></ul>
  3. 3. <ul><li>No one accepted his theory initially. </li></ul><ul><li>It took 30-40 years for the rest of scientific community to catch it up. </li></ul><ul><li>They accepted his theory only after his death. </li></ul>
  4. 4. HIS LAWS……… <ul><li>1 st law-Law of Dominance </li></ul><ul><li>2 nd law-Law of Segregation </li></ul><ul><li>3 rd law-Law of Independent assortment </li></ul>
  5. 5. I WANT TO SUMMARIZE THE LAWS AS … LAW PARENT CROSS OFF-SPRING DOMINANCE TT x tt tall x short 100% Tt tall SEGREGATION Tt x Tt tall x tall 75% tall 25% short INDEPENDENT ASSORTMENT RrGg x RrGg round & green x round & green 9/16 round seeds & green pods 3/16 round seeds & yellow pods 3/16 wrinkled seeds & green pods 1/16 wrinkled seeds & yellow pods
  6. 6. MENDEL PEA EXPERIMENT <ul><li>Smooth yellow and wrinkly green peas </li></ul><ul><li>f1 generation-round yellow was dominant </li></ul><ul><li>Dominant and recessive characters </li></ul><ul><li>f2 generation 3:1 ratio </li></ul><ul><li>“ Units” or “Factors” </li></ul>
  7. 7. CONCLUSION OF THE PEA EXPERIMENT <ul><li>The inheritance of each trait is determined by units or factors (GENES). </li></ul><ul><li>An individual inherits one such unit from each parent of each trait . </li></ul><ul><li>A trait may not be shown up in an individual but can still be passed on to next generation . </li></ul>
  8. 8. REDISCOVERY OF MENDEL PEA EXPERIMENT <ul><li>The Mendel’s pea experiment was realized in the 19 th century . </li></ul><ul><li>It was rediscovered by Hugo de vries ,Corl correns ,Tshemark </li></ul><ul><li>R.A.Fisher used the Mendel’s Genetics in Evolutionary of Biology . </li></ul>
  9. 9. OPEN HOUSE

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