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The B2 RNA is a small noncoding RNA polymerase III transcript that represses mRNA transcription in response to heat shock in mouse cells. B2 RNA inhibits transcription by binding to core Pol II. Through this interaction, B2 RNA assembles into preinitiation complexes at the promoter and blocks RNA synthesis. [40]
Columns are also called hypercolumn, macrocolumn, [4] functional column [5] or sometimes cortical module. [6] Neurons within a minicolumn (microcolumn) encode similar features, whereas a hypercolumn "denotes a unit containing a full set of values for any given set of receptive field parameters". [ 7 ]
The boxed supplements each contained a number (usually three) paper covered books. AH8573 - Monster Coliseum Avalon Hill: RuneQuest 3 (1985 Box) AH8574 - Adventurer Sheets: Human Avalon Hill: RuneQuest 3 (1985 Box) [1]: 209
Every vector space is a free module, [1] but, if the ring of the coefficients is not a division ring (not a field in the commutative case), then there exist non-free modules. Given any set S and ring R, there is a free R-module with basis S, which is called the free module on S or module of formal R-linear combinations of the elements of S.
Nucleosome core particles are observed when chromatin in interphase is treated to cause the chromatin to unfold partially. The resulting image, via an electron microscope, is "beads on a string". The string is the DNA, while each bead in the nucleosome is a core particle. The nucleosome core particle is composed of DNA and histone proteins. [29]
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Christmas in Mir Core Module (DOS-7) The main purpose of the Core Module throughout the station's lifetime was a living area. It was equipped with a lavatory, two cabins for sleeping and privacy, entertainment including movies and music, exercise equipment, and medical equipment.
Every free module is a projective module, but the converse fails to hold over some rings, such as Dedekind rings that are not principal ideal domains. However, every projective module is a free module if the ring is a principal ideal domain such as the integers, or a (multivariate) polynomial ring over a field (this is the Quillen–Suslin ...