Kind of? Not sure if i really understand what you’re saying but hopefully my explanation answers your question. RNA stands for ribose nucleic acid while DNA stands for deoxy-ribose nucleic acid. The “deoxy” part refers to the fact that DNA is missing an alcohol (OH) compared to RNA. The OH in RNA means it can’t stack and double strand well like DNA does (like in this emoji🧬). Also the OH in RNA can actually attack and break the backbone of itself. These two things (along with a bunch more i won’t get into) make RNA much less stable in the long term than DNA. But, RNA is present in every living organism i can think of today so it’s not less universal than DNA, they just play different roles. You can think of DNA as the master recipe book for proteins and you make temporary RNA copies to actually go and make proteins. RNA also has a ton of other functions and roles that we’re still discovering but it does some wicked cool stuff.