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Period: to
DNA era
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Fredrick Griffith and his major experiment
a British bacteriologist whose focus was the epidemiology and pathology of bacterial pneumonia. In January 1928 he reported what is now known as Griffith's Experiment. Griffith's experiment was the first experiments suggesting that bacteria are capable of transferring genetic information through a process known as transformation. http://en.wikipedia.org/wiki/Frederick_Griffith -
P.A. Levene and his discoveries and studies
this person was a biochemist who studied the structure and function of nucleic acids. He characterized the different forms of nucleic acid, DNA from RNA, and found that DNA contained adenine, guanine, thymine, cytosine, deoxyribose, and phosphate groups. http://en.wikipedia.org/wiki/Phoebus_Levene -
Oswald Avery and his contribution
Oswald Avery was one of the first molecular biologists and a pioneer in immunochemistry, his discovery in 1944, with his co-workers Colin MacLeod and Maclyn McCarty, that dna is the material of which genes and chromosomes are made.
http://en.wikipedia.org/wiki/Oswald_Avery -
Erwin Chargaff
Chargaff discovered two rules that helped lead to the discovery of the double helix structure of DNA. the first rule holds that a double-stranded DNA molecule. The second rule holds that both %A ~ %T and %G ~ %C are valid for each of the two DNA strands
http://en.wikipedia.org/wiki/Erwin_Chargaff -
Period: to
Erwin Chargaff and his discoveries
Chargaff discovered two rules that helped lead to the discovery of the double helix structure of DNA. the first rule holds that a double-stranded DNA molecule. The second rule holds that both %A ~ %T and %G ~ %C are valid for each of the two DNA strands -
Rosalind Franklin and her x-ray finds.
X-ray crystallographer who made critical contributions to the understanding of the fine molecular structures of DNA, RNA, and viruses. DNA work got the most fame because DNA plays essential roles in cell metabolism and genetics, and the discovery helped scientists understand how genetic information is passed from parents to children.
http://en.wikipedia.org/wiki/Rosalind_Franklin -
Hershey and Chase and their experiments
Hershey-Chase experiments where a series of experiments that helped confirm that DNA was the genetic material. In the experiments, Hershey and Chase showed when bacteriophages, infect bacteria, their DNA enters the host bacterial cell, but most of their protein does not.
http://en.wikipedia.org/wiki/Hershey%E2%80%93Chase_experiment -
Linus Pauling and his discovery
Linus Pauling decided that DNA was indeed a three-chain helix with the bases facing outward and the phosphates in the core. After his many fails before that attempt to solve the structure of DNA he finally solved it.
http://en.wikipedia.org/wiki/Linus_Pauling -
Maurice WIlkins and the DNA structure
He is best known for his work on the structure of DNA. also won nobel lprize for the same thing as Francis Crick and James Watson. He helped James Watson and Francis Crick on all of thier discoveries on DNA.
http://en.wikipedia.org/wiki/Maurice_Wilkins -
Francis Crick's DNA discoveries
They discovered the structure of DNA in 1953. They won the nobel prize in 1962 for their discoveries concerning the molecular structure of nucleic acids and its significance for information transfer in living material.
http://en.wikipedia.org/wiki/Francis_Crick -
James Watson and his discoveries
They discovered the structure of DNA in 1953. They won the nobel prize in 1962 for their discoveries concerning the molecular structure of nucleic acids and its significance for information transfer in living material.
http://en.wikipedia.org/wiki/James_D._Watson
