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Gregor Mendel
He was a scientist from way back in the day, the 1820's to be exact. He noticed that certain traits of pea plants followed patterns. This is now part of the Mendelian Inheritance, which is a description of how characteristics of some plants are passed on from there parent cells. He cross pollinated yellow round pea plants and wrinkly green pea plants, and he noticed the yellow dominated. He tested around 29,000 peas and noticed the trend, he was like the father of genetics because even though h -
Friedrich 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. -
Frank 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. After this, he wanted to test how the virulent pneumonia wo -
Erwin 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 -
Oswald 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. -
Martha Chase and Alfred Hershey
They conducted an extraordinary experiment in 1952 that helped to convince the world that DNA was genetic material. At the Cold Spring Harbor laboratory, they showed that the DNA, not the protein, of the phage virus contains the phage genes. How they made the experiment successful was that they put it in a blender to see if viral infections were affected by the movement. Hershey won a Nobel Prize for his insights in the nature viruses in 1969. -
Rosalind Franklin
Rosalind Franklin was best known for her work on the X-ray diffraction images of DNA. This led to the discovery of DNA Double Helix. She independently determined the B-form of the DNA helix and the location of phosphate groups on the outside of the structure. Her work is often overlooked but she played a large parti in the way we know DNA today. Her discoveries were made in the Spring of 1953, while she was at Kings College London. -
Kames D. Watson and Francis Crick
The discovered the double helix or "spiral staircase" shape of DNA -
Frederick Sanger
Frederick Sanger was born on August 13th, 1918. He was awarded the Nobel Prize in Chemistry in 1958 and 1980. He is known for the sequence of insulin by amino acids. He is also known for dideoxy method of sequencing DNA. He is an English biochemistry guy from Great Brittain. -
Maurice Wilkins
Maurice Hugh Fredrick Wilkins was born on Dec. 15 1916. He attended St. Johns college in England. After college he helped with the Manhattan project. His biggest contribution to society was he discovered the structure of DNA. He made the first accurate, detailed model of DNA.
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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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