DNA and RNA Structure Answers

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1
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On an RNA molecule, which would base pair with adenine?

A
thymine
B
guanine
C
cytosine
D
uracil
2
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Why can uracil be used as a “clue” to identify RNA in a strand?

A
Because uracil is found in both DNA and RNA.
B
Because uracil indicates a damaged DNA strand.
C
Because uracil is always paired with thymine.
D
Because uracil is unique to RNA.
3

Which of the following could be a nucleotide of RNA?

A
deoxyribose + phosphate group + thymine
B
deoxyribose + phosphate group + uracil
C
ribose + phosphate group + thymine
D
ribose + phosphate group + uracil
4

The diagram shows a nucleic acid in the shape of a double helix.Which sugar is present in the nucleic acid that is represented in the diagram?

Question illustration
A
phosphate
B
uracil
C
deoxyribose
D
ribose
5

Which structural component is found in DNA but not in RNA?

A
ribose
B
deoxyribose
C
phosphate group
D
nitrogenous base

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DNA and RNA Structure Answers —…