DNA and RNA Structure

Question 1

DNA is composed of repeating structural units called .

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nucleotides

Question 2

is the five-carbon sugar found in DNA.

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Deoxyribose is the five-carbon sugar found in DNA.

Question 3

In the diagram to the right, identify the three components of a nucleotide. Label A

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phosphate group

Question 4

Label C

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nitrogenous base

Question 5

Label C

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nitrogenous base

Question 6

Like DNA, RNA contains four nitrogenous bases. Three of them are the same as those found in DNA. The one that is different is called

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uracil

Question 7

What is the role of RNA within the cell?

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RNA moves instructions for protein synthesis from the nucleus to ribosomes.

DNA and RNA Structure Answers