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Rules of Heredity
Gregor Mendel does seveal experements and uses his data to determine the rules of heredity. -
Nuclein is Discovered
Miescher discovers a substance he dubs "nuclein" in pus -
Double Helix is proposed
William Atsbury hypothesizes that DNA has a double helix structure -
DNA is linked with traits
Oswald Avery uses experements with mice to prove that DNA controls the traits of bacteria -
Genetic code is rethought
It is shown by Chargaff that A=T=G=C is not true, rather A=T and G=C. This is known as Chargaff's rule -
DNA is hereditary
Hershey and Chase use viruses in multiple mother-daughter bacteria to prove that they have similar or same genetic makeups. -
How dna reproduces and how to read it
Watson and Crick's lab team uses new technology to observe DNA reproducing -
Bacteria produce human insulin
Genetech completes the first ever genetic engeneering -
Calegen makes frist geneticly engineered crop
A tomato with longer shelf life is made. -
The first mammal is cloned
Dolly the sheep becomes the first mammal ever cloned
