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Understanding DNA: The Molecule of Life

Understanding DNA: The Molecule of Life

Created by
@PromisedAutomatism
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Questions and Answers

Where is DNA located in the body?

Inside the nucleus of cells

What are chromosomes composed of?

Tightly bound packages of DNA

Which statement about genes is true?

Genes are stretches of DNA that tell cells how to build proteins

What can lead to genetic mutations?

<p>Inherited factors and exposure to harmful environmental factors</p> Signup and view all the answers

What can cells do when genetic mutations occur?

<p>Cells can often repair a genetic mutation before it becomes permanent</p> Signup and view all the answers

What is the function of DNA in cells?

<p>Helping cells make proteins</p> Signup and view all the answers

How is a strand of DNA structured?

<p>Double helix with three chemical building blocks</p> Signup and view all the answers

What are the chemical bases in DNA?

<p>Adenine, Cytosine, Guanine, Thymine</p> Signup and view all the answers

What does the sequence of base pairs in DNA determine?

<p>Genetic code</p> Signup and view all the answers

Approximately how many bases does human DNA have?

<p>Three billion</p> Signup and view all the answers

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