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Friedrich Miescher
Friedich Miescher contributed to DNA and its structure when he discovered DNA. He discovered this by doing various experiments with pus covered rags to figure out more about the nucleus. Obviously, this discovery was super important to our current understanding of DNA because it was the first time we have ever seen DNA. -
Rosalind Franklin
Rosalind Franklin contributed to DNA and its structure when she demoonstrated the structure of DNA. She did this by taking X-ray diffracted photographs of DNA that showed the structure of DNA. Although credit for her research was stolen, she greatly contributed to our current understanding of DNA and its structure by providing further evidence of how DNA actually looks. -
Erwin Chargaff
Erwin Chargaff contributed to DNA and its structure when he discovered two rules that lead to the discovery of DNA's double helix structure. He discovered them when while studying DNA's structure, he began to notice that the ratio of bases where always 1:1. This discovery added to our current understanding of the Structure of DNA because it gives a clear explanation of how DNA is formed at even its smallest levels. -
Hershey and Chase
The scientists Alfred Hershey and Martha Chase contributed to DNA and its structure when they proved the idea that DNA is the genetic material. They proved this through multiple experiments with a bacteriophage that would infect bacteria with radiation, causing much of the radioactivity to be passed on to the next generation. This discovery added to our current understanding of DNA because it proves DNA is genetic material, so that when DNA is replicated, it passes down gene info. -
Watson and Crick
The scientists James Watson and Francis Crick contributed to DNA and its structure when they solved the structure of DNA.They came to the conclusion using research from other scientists such as Rosalind Franklin and Maurice Wilkins and piecing them together to form a physical structure of DNA. Although much of their work was based off of other scientists, their model greatly contributed to our current understanding of DNA structure because it gives us a physical representation of the molecule -
Meselson and Stahl
The scientists Meselson and Stahl contributed to DNA and its structure when they discovered that each strand of DNA served as a template for a new synthesis. They formed this conclusion by doing an experiment (named after themselves) that would show how DNA taken from one group would eventually replicate from itself for new synthesis . Their discovery greatly contributes to our current understanding of DNA because it shows how DNA replicates.
