-
Friedrich Miescher
published his book on nuclein--lead to nucleic acid lateron -
Walther Flemming
first to detail chromosomal meovements in process of mitosis -
Thomas Hunt Morgan
discovered that genes are linked in a series on chromosomes and are responsible for our traits -
Walter Sutton
chromosomes occur in pairs, which segregate at meiosis -
WIlson & Stevens
discovered that women were XX and men were XY -
Frederick Griffith
bacteria can pass genetic information through transformation -
Beadle & Tatum
shows how genes control the enzyme that controls metabolic processes -
Oswald Avery
proved DNA carries genetic information--suggested that DNA may be the gene -
Fred Sanger
proved that proteins have/follow sequences--the genes & DNA that make up the proteins must have sequences aswell -
Erwin Chargaff
determined Chargaff's rules-states that in DNA, A pairs with T and G pairs with C -
Rosiland Franklin
took a picture of photo 51-the DNA's double helix shape -
Hersey & Chase
worked with DNA virus called T2 which infects E. Coli -
Watson & Crick
discovered DNA was made up of 2 chains, each in a helix--one going up, one going down -
Maurice Wilkins
took X-rays of DNA to produce images---found the structure with Watson & Crick -
Joe Hin Tijo
produced the first correct count of chromosomes in human cells -
Messelson & Stahl
told how 2 helix strands can make up DNA -
Paul Berg
developed a way to join two DNAs together in-vitro (recombinant DNA) it created a new species by putting foreign DNA into a cell -
Marshall Nirenberg
deciphered a portion of deoxyriboneucleic acid (DNA), which led to the code's unraveling -
Temin & Baltimore
discovered enzyme reverse transcriptase -
Cohen & Boyer
DNA recombinant engineering on medicine--replicated information from different species -
Kerry Mullis
PCR--polymerse chain reaction