What do you mean by responsible? Do you want to know the genetics behind it, what the surface markers do, or why they are metically important? I think I can help.
Answer:
Three items that are unique to RNA are as follows:
2. Single-stranded.
3. Contains the nitrogen base Uracil in place of Thymine.
4. Backbone contains the sugar ribose.
Explanation:
A. Heat will not flow because there is no temperature difference between the substances.
