In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

One variant of this phenomenon can be used to tune the electronic properties of boron nitride nanotubes from nearly insulating to metallic. Another variant of this phenomenon is induced by interference of standing laser waves to trap atoms of a Bose-Einstein condensate loaded into an optical lattice. Schrdinger's third article from his 1926 series of papers presented his perturbation theory treatment of this effect's modification of the Balmer and Lyman series. Along with van der Waals broadening and resonance broadening, this effect can produce pressure broadening of spectral lines. In addition to the giant version and the AC or Autler-Townes form of this effect, it exhibits variants that are linear and quadratic in the applied field. FTP name this shifting and splitting of spectral lines due to an external electric field, the analogue of the Zeeman effect.
Science

The Hoecht stain binds to the minor groove of this molecule, forming G-quadruplexes. The ratio of nitrogen isotopes in this molecule, which exists in A, B, and Z forms, was measured in the Meselson-Stahl experiment to give evidence for its semiconservative replication. It winds around proteins called histones, and Okazaki fragments are formed when its namesake enzyme travels from the 5-prime to 3-prime direction of this molecule adding nucleotides. For 10 points, name this molecule that carries the genetic information of living organisms.
Science

This country's neighbor had a political party called the Hats, which instigated a war in which Peter Lacy invaded this country. That conflict that ended with the Treaty of Abo, which resulted in this nation's occupation. The traitorous Gustav Otto Douglas was the governor of this country during one occupation period that also saw Mikhail Golitsyn act as its governor. In addition to being occupied in the Lesser and Greater Wraths, this country was invaded by Great Britain during (*) World War II during raids on its cities of Kirkenes and Petsamo. The Mainila incident precipitated a war in which this country was invaded, and that war saw this country capitulate to the Treaty of Moscow and give up parts of Karelia. 10 points, name this country that constructed the Mannerheim Line to defend itself from Russia in the Continuation and Winter Wars.
History