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Period: to
Dna history
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Friedrich Miescher
He was born in basel,switzerland;lived in a very respescted family.
Since he had a hearing problem he couldnt talk to the pateints so he based his work on medical research.He is the first person to discover,isolate and identify nucleic acid. -
Carl Correns
He was born on Sept 10 1864 in Berlin,Germany.He was a german botanist and geneticist.He is known for the discovery of the principles of heredity and rediscovery of Mendal's discovery -
Fredrick Griffith
He was a british Bacteriologist.He was trying to find a vaccine for pneumonia because a lot of people were dying from it at the time.He is known for his experiment.He discovered that bacteria can change there function,how they look and etc.He discovered transformation. -
George wells Beadle
He was born on Oct 22 1903 in Nebraska.He was an American scietist in the field of genetics.His experiment involved exposing bread mold to x-rays,causing mutation to the mold.He is known
for the One gene-one enzyme hypothesis. -
Oswald Avery
He was born on Oct 21 1877 in Canda.He became a bacteriologist and a research physcian.He discovered that DNA serves as genetic material and that it can be altered through transformation. -
Erwin Chargaff
He was born on August 11 1905 in Ukraine.He was a Austro-Hungarian biochemist.He is known for his 2 rules for DNA.
They are:any Dna from a organism should have a 1:1 ratio of pyrimidine and purine and the amount of guanine is equal to cytosine and the amount of adenine is equal to thymine. -
Maurice Wilkins and Rosalind Franklin
Wilkins and Franklin are both known for x-ray diffraction.There research contributed to understanding of lots of things.Franklin sacrificed her body to take a x-ray diffraction.The x-ray diffraction helped in discovering lots of things. -
Hershey and Chase
Alfred Hershey and Martha Chase are known for there Hershey-chase experiment.It helped confirmed that DNA is genetic material.Scientist were still a little unsure about it. -
Watson and Crick
They are both known for discovering the shape of DNA. They discovered that it was a double-helix structure.Doublel helix is a spiral of 2 DNA strands.
