The RNA molecule is very important in the production of proteins. Though very similar to DNA, there are 3 differences the RNA molecule, a photocopy of DNA, possesses. The structure is a helix, the sugar in the backbone is , and the nitrogenous base base pairs with adenine.

The structure is a double helix, the sugar in the backbone is a sugar-phosphate, and the nitrogenous base thymine base pairs with adenine.

Explanation:

The DNA is composed of the double stranded molecule that is more systematic to understand as it has the nucleotides  bonded to one another with the help of the hydrogen double and single bond between them.