The X-Ray Diffraction Photography of Rosalind Franklin and Maurice Wilkins

question 16

Multiple Choice

The X-ray diffraction photography of Rosalind Franklin and Maurice Wilkins was critical evidence in the study of DNA,

• A) indicating that DNA has a double helix structure.
• B) showing equal numbers of purines and pyrimidines.
• C) showing the bases of DNA were held together by hydrogen bonds.
• D) revealing the structure of the deoxyribose sugar.
• E) of the location of each adenine, guanine, cytosine, and thymine.

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Definitions:

Triple Bond

A chemical bond in which three pairs of electrons are shared between two atoms, making it the strongest and shortest among the types of chemical bonds.

Covalent Bonds

Chemical bonds formed by the sharing of electrons between atoms, leading to stable molecules.

Electrons

Subatomic particles with a negative charge, found in electron shells surrounding the nucleus of an atom.

Benzene

A colorless, volatile liquid hydrocarbon present in coal tar and petroleum, used in chemical synthesis.