@misc{Szabat_Marta_2017, author={Szabat, Marta}, copyright={Creative Commons Attribution BY-SA 4.0 license}, howpublished={online}, year={2017}, language={pol}, abstract={DNA exists as a double helical structure, called B helix, which is the most commonstructure. In native RNA, double-stranded helical regions are short (on average 5–7 basepairs long) and RNA contains many different structural motifs, such as: hairpins,symmetrical and asymmetrical single or double nucleotide bulges, internal loops. Thepolymorphic nature of nucleic acids allows to adopt a variety of structures depending onthe sequences, the local environment, the presence of molecules or chemicalmodifications. For examples, DNA and RNA can form parallel-stranded duplexes, triplehelical structures (triplexes) or four-stranded structures (quadruplexes).}, type={Text}, URL={http://www.rcin.org.pl/Content/208594/PDF/POZN271_245572_doktorat-szabat.pdf}, }