But in the deoxyribosugar, deoxy means we don't have that hydroxyl group attached to the second carbon. So although both DNA and RNA molecules contain sugar components in their nucleotides DNA contain DNA contain a deoxyribosugar. And what that means is it's simply a ribosugar that does not have a hydroxyl group attached to that second carbon. Now, what exactly is the meaning behind the absence of this hydroxyl group? Well, it turns out that because that hydroxyl group is not present in deoxyribosugar, that actually stabilizes our structure of DNA because it makes it much more resistant to hydrolysis by different types of nucleophiles. And we'll talk more about that in just a moment.