X-Ray Data Showed That the Spacing Between Repeating Units Along

question 47

Multiple Choice

X-ray data showed that the spacing between repeating units along the axis of the DNA helix is

• A) 2.0 angstroms.
• B) 3.4 angstroms.
• C) 20 angstroms.
• D) 34 angstroms.
• E) None of the choices are correct.

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Definitions:

Cyclohexanone

An organic compound with the formula (CH2)5CO, characterized by a six-carbon ring with a ketone functional group.

Benzophenone

An organic compound with the formula (C6H5)2CO, commonly used in organic chemistry as a photoinitiator.

Diethyl Ether

An organic compound commonly used as a solvent, characterized by an oxygen atom connecting two ethyl groups.

1-Butanol

A primary alcohol with the chemical formula C4H9OH, characterized by a four-carbon straight chain terminating in a hydroxyl group.