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Miescher
Friedrich Miescher was born in August, 1844. He is known for the discovery of nucleic acid (DNA) in 1869. Meischer isolated various phosphate rick chemicals, which he called nuclein, thus paving the way for the identification of DNA. has the carrier inheritance. He published this discovery in 1871. He passed a way in 1895. -
Griffith
Fredrick Griffith was born in 1879, but it wasn't until 1928 when he became famous for an experiment he thought would help others point out that DNA is a molecule of inheritance. This experiment involved several mouses and two types of pneumonia, virulent(deadly) and non-virulent(not deadly). To start off, he inject one mouse with the virulent pneumonia, which died after injection, and another with the non-virulent... this one lived on. -
Avery
He was a Canadian-born American physician and medical researcher. Avery is best known for 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. He spent five years researching this and proved that not all young people make the breakthrough discoveries. -
Chargaff
In the 1940’s Erwin Chargaff from the University of Columbia, noticed that there was a pattern that occurred in the four bases which are: adenine, guanine, cytosine, and thymine. He took samples of different types of DNA from different cells and found that the amount of thymine was almost equal to the amount of adenine, also the amount of guanine was almost equal to the amount of cytosine. If you look at this then you can tell that A=T and G=C. Later on this find, in discovering DNA, known as th -
Franklin & Wilkins
Maurice Wilkins and Rosalind Franklin, together with Ray Gosling, Alec Stokes and Herbert Wilson and other colleagues at the Randall Institute at King's, made crucial contributions to the discovery of DNA's structure in 1953.
Wilkins began using optical spectroscopy to study DNA in the late 1940s. In 1950 he and Gosling obtained the first clearly crystalline X-ray diffraction patterns from DNA fibres. Alec Stokes suggested that the patterns indicated that DNA was helical in structure.
The discov -
Hershey & Chase
The Hershey–Chase experiments were a series of experiments conducted in 1952[1] by Alfred Hershey and Martha Chase that helped to confirm that DNA is genetic material. While DNA had been known to biologists since 1869,[2] many scientists still assumed at the time that proteins carried the information for inheritance because DNA appeared simpler than proteins. -
Watson & Crick
"Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid" was an article published by Francis Crick and James D. Watson in the scientific journal Nature in its 171st volume on pages 737–738 (dated 25 April 1953).[1] It was the first publication which described the discovery of the double helix structure of DNA, using X-ray diffraction and the mathematics of a helix transform -
Thomas Hunt Morgan
Thomas Morgan, received his degree in zoology in 1980 from John Hopkins University . He proved that genes or genetic material is carried on chromosomes by his experiments with fruit flies. In 1993 he was awarded the Nobel prize for his discoveries concerning the role played by the chromosome in heredity. Born in Lexington Kentucky on September 25, 1866. -
John Sulston
John Sulston is a British biologist, he was born March 27, 1942. He dedicated his work life to science, especially in the field of molecular biology. He played a leading role in the human genome project. John Sulston was awarded the Nobel Prize for Physiology or Medicine in 2002 with Sydney Brenner and Bob Horvitz. They were awarded for the work they had done in understanding the development and dividing of the cells in C. elegans.
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