Respuesta :
A double-helix. The structure of RNA is just single stranded, unlike DNA which has two strands wrapped around each other.
Explanation:
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The differences between RNA and DNA are:
The DNA is composed of 4 nitrogen bases: Adenine, Thymine, Cytosine and Guanine.
RNA is composed of Thymine, Cytosine, Guanine but instead of Adenine has Uracil.
DNA is a double helix but RNA is a simple helix.
DNA is composed of deoxyribose and RNA by ribose.