stem and loop造句

例句与造句

1. The secondary structure of nucleic acid molecules can often be uniquely decomposed into stems and loops.
2. The secondary structure of biological RNA's can often be uniquely decomposed into stems and loops.
3. In H-type fold, nucleotides in the hairpin loop pairs with the bases outside the hairpin stem forming second stem and loop.
4. These stem and loop structures are subject to alterations regarding changes in pH, temperature, ion concentrations, binding nature of proteins and also nucleic acids.
5. It's difficult to find stem and loop in a sentence. 用stem and loop造句挺难的