The diagram shows a nucleic acid in the shape of a double helix.
A D N A strand in the shape of a double-helix is shown.

Which sugar is present in the nucleic acid that is represented in the diagram?
phosphate
uracil
deoxyribose
ribose

deoxyribose

Explanation: From the information provided, (though the diagram is not shown), the structure is a DNA double helix. A DNA contains deoxyribose sugar thus the name deoxyribonucleic acid. RNAs contains ribose sugar thus the name ribonucleic acid. A deoxyribose is a pentose (a 5- carbon sugar) which lacks one oxygen atom at position two of its carbon skeleton, hence the name deoxy - ribose. It's usually written chemically as 2- deoxyribose.

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