OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Information obtained by Franklin from X-ray crystallography on DNA suggested that it is a
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helix
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ribbon
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hollow cylinder
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pleated sheet
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Explanation:
Detailed explanation-1: -Created by Rosalind Franklin using a technique called X-ray crystallography, it revealed the helical shape of the DNA molecule. Watson and Crick realized that DNA was made up of two chains of nucleotide pairs that encode the genetic information for all living things.
Detailed explanation-2: -At King’s College London, Rosalind Franklin obtained images of DNA using X-ray crystallography, an idea first broached by Maurice Wilkins. Franklin’s images allowed James Watson and Francis Crick to create their famous two-strand, or double-helix, model.
Detailed explanation-3: -Rosalind Franklin’s X-ray diffraction patterns of DNA molecules rendered the important clue that DNA has the structure of a double helix.
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