RNA in Cells Differs from DNA in That

question 53

Multiple Choice

RNA in cells differs from DNA in that

• A)it contains the base uracil, which pairs with cytosine.
• B)it is single-stranded and cannot form base pairs.
• C)it is single-stranded and can fold up into a variety of structures.
• D)the sugar ribose contains fewer oxygen atoms than does deoxyribose.

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Definitions:

Heritable Traits

Characteristics or qualities that are passed from parents to offspring through the genes.

Old Stone Age

Also known as the Paleolithic Era, the earliest period of human history characterized by the use of rudimentary stone tools.

Base of the Skull

The inferior portion of the skull, upon which the brain rests, comprising various openings for blood vessels and nerves.

Mousterian Tool Tradition

A prehistoric stone tool industry associated with Neandertals and early modern humans, characterized by flake tools such as points, scrapers, and knives.