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Rev James Ussher
Determined age of earth, creation in 4004 BC, predicted world to end in 1999 -
Hooke
Came up with the word cell, accepted extinction -
John Ray
first came up with a definition for "species", took a step toward modern taxonomy -
Period: to
King George III
Suffered from mental illness, later discovered that mentall illness was caused by porphyria -
Lamarck
came up with theory of evolution with acquired inheritance, didn't think extinction was an issue because of spontaneous generation -
Georges Cuvier
first began to believe that extinction must have occured from catastrophies -
Charles Lyell
Believed in slow changes in species, and didn not believe catastrophies had an effect on species. (disagreed with Cuvier) -
Darwin
Origin of Species published in this year, did work on natural selection. -
Frederick Meischer
Discovered substance called Nuclein, now known as DNA -
Gregor Mendel
Austrian Monk, pea plant experiments in monestary -
Ernst Haekle
Discovered that the development of an organism repeats its evolutionary history, and is an indicator of common ancestors -
Queen Victoria
Carrier for Hemophilia -
Thomas Hunt Morgan
Began studies on Drisophila melanogaster (think back to the disgusting fly movie) -
Frederick Griffiths
Looked for bacterial pneumonia vaccine, discovered the transforming factor. -
Oparin
Hypothesis: Add high energy to methane, ammonia, H2 and H20, --> produce amino acids --> proteins -
To 1940's, Delbruck&Luria
Worked with phages in E.coli to answer question of whether genetic material is in protein or DNA -
Avery
Tested the transforming factor, and the question "Is the genetic in the proteins, the RNA, or the DNA? -
Miller & Urey
Tested Oparin's hypothesis, think back to the picture with the beaker from the first unit. Proved amino acid chains become proteins. -
Hershey and Chase
Tested whether genetic material was in the protein or the DNA using radioactive phosphorus for the DNA detection, and radioactive sulfur for the detection of the proteins. (all tested in E. coli). -
Hershey & Chase
Tested whether genetic material was in protein or DNA using radioactive phoshorus and sulfur in E. Coli. Found that Radioactive phosphorus was in the E. Coli, so it had to be DNA. -
Watson & Crick
Discovered DNA Structure, watched entire video on them -
Rosalin Franklin, Morris Wilkins
Worked with Watson and Crick, included in movie -
Linus Pauling
Discovered the shape of proteins such as hemoglobin, attempted to describe DNA structure, won a Nobel Prize