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Questions and Answers
What was Rosalind Franklin's primary area of research that contributed to the discovery of DNA's structure?
What was Rosalind Franklin's primary area of research that contributed to the discovery of DNA's structure?
- X-ray crystallography (correct)
- Molecular biology
- Biochemical analysis
- Genetic engineering
What significant event occurred in 1951 at King's College London regarding Franklin's career?
What significant event occurred in 1951 at King's College London regarding Franklin's career?
- She completed her doctorate
- She won a Nobel Prize
- She was appointed to head the X-ray research team (correct)
- She began her research on crop viruses
What was the result of Franklin's work in X-ray crystallography in 1952?
What was the result of Franklin's work in X-ray crystallography in 1952?
- The structure of RNA was determined
- The first model of DNA was created
- The correct genetic coding sequence was deciphered
- The first clear image of crystalline DNA was produced (correct)
Where did Rosalind Franklin conduct her doctoral research before her contributions to DNA?
Where did Rosalind Franklin conduct her doctoral research before her contributions to DNA?
Which phrase best reflects Rosalind Franklin's attitude toward the relationship between science and everyday life?
Which phrase best reflects Rosalind Franklin's attitude toward the relationship between science and everyday life?
What was the key contribution of Photograph 51 to the understanding of DNA?
What was the key contribution of Photograph 51 to the understanding of DNA?
Which statement accurately reflects Rosalind Franklin's achievements during her research on DNA?
Which statement accurately reflects Rosalind Franklin's achievements during her research on DNA?
What role did Maurice Wilkins play in the recognition of Franklin's work?
What role did Maurice Wilkins play in the recognition of Franklin's work?
What was a significant reason for the delayed acknowledgment of Franklin's contributions to science?
What was a significant reason for the delayed acknowledgment of Franklin's contributions to science?
What additional field did Rosalind Franklin contribute to after her work on DNA?
What additional field did Rosalind Franklin contribute to after her work on DNA?
Flashcards
Who was Rosalind Franklin?
Who was Rosalind Franklin?
A British chemist who played a key role in discovering the structure of DNA.
What was Franklin's major contribution to DNA research?
What was Franklin's major contribution to DNA research?
Franklin produced the first clear X-ray image of DNA in 1952, revealing its double helix structure.
How did Franklin's work impact the DNA discovery?
How did Franklin's work impact the DNA discovery?
Franklin's work helped Watson and Crick build their model of the DNA molecule, though their findings were published without fully acknowledging her contributions.
What is X-ray crystallography?
What is X-ray crystallography?
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What is the significance of Franklin's quote, "Science and everyday life cannot and should not be separated."?
What is the significance of Franklin's quote, "Science and everyday life cannot and should not be separated."?
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What was Photograph 51?
What was Photograph 51?
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Who was Rosalind Franklin and what was her contribution?
Who was Rosalind Franklin and what was her contribution?
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What was Maurice Wilkins' role in DNA discovery?
What was Maurice Wilkins' role in DNA discovery?
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Why wasn't Rosalind Franklin recognized for her work during her lifetime?
Why wasn't Rosalind Franklin recognized for her work during her lifetime?
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Apart from DNA, what else did Rosalind Franklin research?
Apart from DNA, what else did Rosalind Franklin research?
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Study Notes
Rosalind Franklin: A Chemist's Contribution to DNA
- Rosalind Franklin was a British chemist born in London in 1920.
- She earned a degree in physics in 1941 and a doctorate in 1945 in physical chemistry.
- Her research focused on the structures of coal, graphite, and later, DNA.
- Franklin employed X-ray crystallography to study the structure of DNA, a technique she mastered.
- Her work determined the molecular structure of DNA, making crucial contributions to the 20th century's scientific advancements.
- Franklin's expertise in X-ray crystallography was instrumental to understanding DNA structure. She used X-rays to examine the crystalline structure.
The Race to Understand DNA
- In the 1950s, scientists globally competed to discover the structure of the DNA molecule, which contained genetic coding crucial to all living organisms.
- Leading up to this timeframe, scientists like James Watson and Francis Crick, were also trying to solve the structure of DNA.
- Franklin's precise, detailed photographing of DNA strands using X-rays at King's College, London, led to profound advancements in understanding the double helix structure of DNA.
- In 1952, her image of DNA unveiled its double helix structure, proving critical to modern biology. Photo 51 was her most important image leading to the discovery, her work was vital for advancements in the understanding of DNA.
Franklin's Impact and Legacy
- She photographed DNA strands at King's College, London, working with physicists, biologists, and biochemists, helping pioneer biophysical techniques.
- Her groundbreaking work in X-ray crystallography advanced biophysics.
- Franklin later moved to Birkbeck College and conducted research on plant viruses.
- She famously stated, "Science and everyday life cannot and should not be separated."
- Despite her vital work, her contributions to DNA discovery faced limitations due to various factors, influencing her recognition amongst those involved in the project. She did not receive recognition in her lifetime for her pioneering work.
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