Timeline of our Understanding of Genetics Timeline of our Understanding of Genetics
The timeline showcases key steps in our understanding of genetics, from the work of Gregor Mendel in the mid-19th century to the discovery of the structure of DNA in the mid-20th century. It highlights important discoveries such as genes being located on chromosomes, observations of cell division, and the elucidation of gene function mechanisms.
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Presentation Transcript
Timeline of our Understanding of Genetics Timeline of our Understanding of Genetics Task: Using you Specification (section 4.6.3.3 The Understanding of Genetics ) make a timeline to show the FOUR important steps in our Understanding of Genetics
Timeline of our Understanding of Genetics Timeline of our Understanding of Genetics Electron microscope 1920s Mid 20th C Structure of DNA and mechanism of gene function worked out Late 19th C Chromosomes & Cell Division observed Flemming Early 20th C Genes discovered to be on Chromosomes Mid 19th C Gregor Mendel
1) In what year was Mendel born? 2) What was his occupation? Gregor Mendel 3) Which plant species did Mendel work with? 4) What knowledge did Mendel NOT have when he studied inheritance? 5) Why did Mendel not have this knowledge? 6) What did people assume about inheritance prior to Mendel s work (use the squirrel example) 7) Name some traits of pea plants Mendel studied 8) What was special about these traits he studied? 9) What colours were the pea plant flowers in Mendel s garden? 10) What did Mendel do to the purple and white plants? 11) What were Mendel s 3 important conclusions? 12) What did Mendel call the information passed from parents to offspring? 13) What do we now call the information passed from parents to offspring? 14) Why were Mendel s findings not recognised until after his death?
Mendels Pea Plant Cross Mendel s Pea Plant Cross - - Example Example
Mendels Pea Plant Cross Mendel s Pea Plant Cross - - Example Example
Mendels Pea Plant Cross Mendel s Pea Plant Cross - - Example Example
Mendels Pea Plant Cross Mendel s Pea Plant Cross - - Example Example
