Watson and Crick Discovered

question 54

Multiple Choice

Watson and Crick discovered:

• A)the structure of DNA.
• B)that DNA is the genetic material.
• C)X-ray crystallography.
• D)that genetic information resides on chromosomes.

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Definitions:

Macromolecule

Large molecules necessary for life, including proteins, nucleic acids, carbohydrates, and lipids.

Compound

A substance formed from two or more elements chemically united in fixed proportions.

Atom

The basic unit of a chemical element, consisting of a nucleus of protons and neutrons, and electrons orbiting the nucleus.

PH

A scale used to specify the acidity or basicity of an aqueous solution, with values ranging from 0 (most acidic) to 14 (most basic).