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Questions and Answers
What is fractionation?
What is fractionation?
- A process of separating a substance based on its physical properties.
- A process of converting a substance from solid to liquid form.
- A process of breaking up a substance into fractions based on chemical composition. (correct)
- A process of combining substances to create a new compound
How was insulin discovered?
How was insulin discovered?
- Using fractionation techniques. (correct)
- By analyzing the structure of proteins.
- By studying the chemical properties of sugar.
- Through x-ray crystallography.
Who discovered the double helix structure of DNA?
Who discovered the double helix structure of DNA?
- Rosalind Franklin.
- Linus Pauling.
- James Watson and Francis Crick. (correct)
- Maurice Wilkins.
What was Rosalind Franklin's role in the discovery of the structure of DNA?
What was Rosalind Franklin's role in the discovery of the structure of DNA?
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Who won the Nobel Prize in Physiology and Medicine for their discovery of DNA?
Who won the Nobel Prize in Physiology and Medicine for their discovery of DNA?
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What is DNA made up of?
What is DNA made up of?
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What is the width of DNA?
What is the width of DNA?
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Where was the discovery of DNA structure published?
Where was the discovery of DNA structure published?
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Study Notes
- Fractionation is a process of breaking up a substance into fractions based on chemical composition.
- Insulin was discovered using fractionation techniques.
- James Watson and Francis Crick discovered the double helix structure of DNA in 1953.
- Rosalind Franklin played a critical role in the discovery of the structure of DNA through x-ray crystallography.
- Watson, Crick, and Wilkins won the Nobel Prize in Physiology and Medicine for their discovery of DNA in 1962.
- DNA is a macromolecule made up of two poly nucleotide chains.
- The DNA structure has a major and minor groove that affects the accessibility of proteins and other molecules.
- DNA is 2 nanometers wide.
- The discovery of DNA structure was published in a one-page paper in Nature in 1953.
- Rosalind Franklin did not receive a Nobel Prize for her work due to her death before the award was given.
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