Using the Ideas Discussed in Your Textbook,in What Sense Are

question 66

Multiple Choice

Using the ideas discussed in your textbook,in what sense are we "star stuff"?

• A)The overall chemical composition of our bodies is about the same as that of stars.
• B)Movie stars and other people are all made of the same stuff,so we all have the potential to be famous.
• C)Nearly every atom from which we are made was once inside of a star.
• D)We could not survive without light from our star,the Sun.

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Definitions:

Inducible Operon

A segment of DNA that includes genes which are transcribed together in response to an environmental signal.

Lactose Operon

A set of genes and their regulatory sequences involved in the metabolism of lactose in bacteria, demonstrating control of gene expression.

Promoter Regions

Specific DNA sequences where RNA polymerase binds to initiate transcription of genes.

Operator

In genetics, a segment of DNA to which a repressor binds, controlling the expression of genes; in mathematics, a function or symbol that represents a function from a set of numbers.