who discovered dna?
was it friedrich miescher,francis crick and james watson or rosalind franklin????
in know someone asked the same question yesterday but im still stuck any help would be great thankyou.
The discovery of DNA cannot be attributed to a single individual as it involved the contributions of multiple scientists. Friedrich Miescher, a Swiss biochemist, first isolated a substance called "nuclein" from white blood cells in 1869, which is now recognized as DNA. However, Miescher did not fully understand the significance of his discovery.
In the early 1950s, James Watson and Francis Crick, two researchers at the University of Cambridge, proposed the double helix structure of DNA. Their work was based on the experiments and data from several other scientists, including Rosalind Franklin.
Rosalind Franklin, a British biophysicist, conducted pivotal X-ray crystallography experiments that produced images of the DNA molecule. These images, known as Photograph 51, provided important evidence for the structure of DNA and were instrumental in the discovery. However, she did not receive recognition for her contributions during her lifetime.
So, the discovery of DNA involved the work of Friedrich Miescher, Francis Crick, James Watson, and Rosalind Franklin, among others.
The discovery of DNA can be attributed to multiple scientists who contributed to our understanding of its structure and properties.
Friedrich Miescher, a Swiss biochemist, is credited with the initial discovery of DNA in 1869. He isolated a substance from the nuclei of white blood cells and named it "nuclein," which we now know as DNA.
However, the structure of DNA and its role in heredity were elucidated by teams of scientists. Francis Crick and James Watson are often recognized for proposing the double helix structure of DNA in 1953. They used Rosalind Franklin's X-ray crystallography data, which was obtained without her knowledge or consent, to deduce the structure.
It’s important to note that Rosalind Franklin herself made significant contributions to the understanding of DNA's structure. Her X-ray diffraction images were crucial in revealing the helical shape of DNA and were published in 1952. However, her untimely death in 1958 prevented her from receiving the Nobel Prize that was awarded to Crick, Watson, and Maurice Wilkins in 1962.
In summary, Friedrich Miescher discovered DNA, while Francis Crick, James Watson, and Rosalind Franklin made significant contributions to our understanding of its structure.