13 episodes were in house of cards seadon 5.
how many episodes in house of cards seadon 5?
13
the chalkboard gag is a running visual joke that occurs during the opening credits of many episodes. in this gag, bart simpson is writing lines on the chalkboard as a punishment; when the school bell rings, he immediately stops writing and runs out of the classroom. the phrase he writes on the chalkboard changes from episode to episode. chalkboard messages may involve political humor such as "the first amendment does not cover burping", pop culture references such as "i can't see dead people" ("the sixth sense") and "i was not the sixth beatle", the "invader zim" pilot with dib, and meta-references such as "i am not a 32-year-old woman" (in reference to bart's voice actress nancy cartwright) and "nobody reads these anymore". when possible, bart is shown deliberately disobeying the line that he is writing on the chalkboard (e.g. squeaking chalk when asked to write "i will not squeak chalk", putting in ditto marks for "i will not cut corners", showing dis-coordination with "coffee is not for kids", or putting "i will finish what i sta" for a single line). in "the simpsons movie", the gag, "i will not illegally download this movie", is a reference to piracy. the animators are able to produce the chalkboard gags quickly and in some cases have changed them to fit current events. for example, the chalkboard gag for "homer the heretic" (season four, 1992) read, "i will not defame new orleans." the gag had been written as an apology to the city for a controversial song in the previous week's episode, which called the city a "home of pirates, drunks and whores". another such chalkboard line gave the creators stance on the threats made towards another popular animated sitcom, "south park", by the group revolution muslim, following the controversies with the episodes 200 and 201 and the depictions of muslim prophet mohammed (south park- we'd stand beside you if we weren't so scared). many episodes do not feature a chalkboard gag because they are cut to make more room for story, plot development and advertisements. in "four regrettings and a funeral" (season 25, 2013), bart writes "we'll really miss you mrs. k" only once, in tribute to the recent death of marcia wallace, the voice of edna krabappel. in the first episode to air after donald trump won the united states presidential election in 2016, bart writes "being right sucks", a reference to the 2000 episode "bart to the future" where lisa succeeds trump as commander-in-chief.
the simpsons opening sequence
the a-minor motif is a ubiquitous rna tertiary structural motif. it is formed by the insertion of an unpaired nucleoside into the minor groove of an rna duplex. as such it is an example of a minor groove triple. although guanosine, cytosine and uridine can also form minor groove triple interactions, minor groove interactions by adenine are very common. in the case of adenine, the n1-c2-n3 edge of the inserting base forms hydrogen bonds with one or both of the 2’-oh’s of the duplex, as well as the bases of the duplex (see figure: a-minor interactions). the host duplex is often a g-c basepair.
nucleic acid tertiary structure