The Scientists Website http://www.dnai.org/timeline/ http://www.dnai.org/timeline/ http://www.dnalc.org/view/16235Biography-7-Walther-Flemming1843-1905-.html The Research What was Gregor Mendel studying? What did Frederich Miescher discover? What did Walter Fleming discover? What were the different traits that he was studying? Did he know about DNA? The Theory And it’s Significance What were the three theories he came up? Watch the interactive film. Read his bio and discuss what he thought the discovered? In 1869, he extracted a substance from white blood cells that he called nuclein. What do you think he was actually extracting? Watch the animation of All Cells Derive from Pre-existing Cells. What Theory did he come up with? The Scientists Website http://www.dnai.org/timeline/ http://www.dnaftb.org/17/index.html http://www.dnalc.org/view/15495-Chargaff-sratios-3D-animation-with-narration.htm The Research 1910 –What was Thomas Morgan researching? 1928-1940-What did Avery and Griffith Research? 1950 What was Chargaff Researching? Adenine (A) pairs with _____________ Guanine (G) pairs with _____________ The bases that are purines include ___________ & ____________. The bases that are pyrimidines include ___________ & ______________. The Theory And it’s Significance What did he discover What did they discover? Avery and Frederick Griffith’s famous experiment was conducted in 1928. In this experiment, ______________ smooth virulent bacteria plus live rough ______________ bacteria killed mice. His experiment demonstrated that DNA was the _______________ material. What did he discover? Watch “Chargaff’s Ratios.” Chargaff used relative proportions of bases in DNA to come up with his rules for base pairing. What are four sources of DNA that he used? The Scientists Website http://www.dnai.org/timeline/ http://www.dnaftb.org/19/index.html Read slides 19 and watch the animation The Research 1952-What was Rosalind Franklin researching? Who else worked with her? 1953 Who were James Watson and Francis Crick? What are the four bases? What are nucleotides? What is the structure of the DNA molecule? Explain the method she used. What did she discover about the shape of DNA? The Theory What did she discover? And it’s Significance What did they discover? Discuss all three slides. http://www.dnai.org/timeline/ then Go back to the other link and read 20-22 1955 What else were they researching? What did they say about the other half of the DNA molecule? What is the mRNA? What is the central Dogma? What are the Different types of RNA? What is the importance of Amino Acids? What did they discover? The Scientists Website http://www.dnai.org/timeline/ http://www.dnai.org/timeline/ http://www.dnai.org/timeline/ The Research 1954 What was Seymour Benzer researching on? What is a gene What is crossing over and what do the beads represent? What do you think he means by divisible? 1957-What were Meselson and Stahl researching on? How is a DNA made? When is DNA made? What did Watson and Crick suggest? 1961 –What was Sydney Brenner Researching on? Which RNA carried the message from DNA to the ribosome? The Theory And it’s Significance What did he discover? What did they discover? What did he discover? Choose any scientist The Scientists Website http://www.dnai.org/timeline/ http://www.dnaftb.org/23/animation.html The Research 1961 What was Marshall Nirenberg researching on? What is the genetic code? What is a codon? What occurs in the nucleus? What happens in the cytoplasm? 1950- What did Fred Sanger research on? What did he determine about the protein insulin? What does the genetic code determine? The Theory And it’s Significance What did they discover? What did he discover? The discovery and significance of DNA was a collaborative http://learn.genetics.utah.edu/content/begin/dna Go to DNA and Protein, and then look at what is a gene, and what is DNA. Share your learning with each other by collaborating and putting together all the discoveries that the scientists have made through the ages and understand the significance of DNA and heredity. Work in groups and choose a method to present this material to the class. You can use PPP; draw it on poster board, or any other method that they can think of. You need to get it approved by me. The project must include all the scientists. The project must include their discoveries. The project must contain the significance of DNA. What is the purpose of the genetic code? What method is used to copy information? Show a timeline about the discoveries. The project must be neat and organized. It must be display all the scientists. It must show their discoveries. Through this, the project should be able to show what the purpose and method is that DNA uses. This is a 100% project so presentation is part of the grade.