Patterns of histone modifications are implicated as having a role in directing the level of chromatin compaction, as well as playing roles in multiple functional pathways directing the readout of distinct regions of the genome.hromosomes in eukaryotic cell nuclei are not uniformly organized, but rather contain distinct chromatin elements, with each state having a defined biochemical structure and biological function.
FM - Frequency Modulation. In Telecommunication, Frequency Modulation is a technique of transmitting information using a carrier wave. The frequency of the carrier wave is varied in accordance with the amplitude and polarity of the input signal.
The change in frequency, which is greatly exaggerated here, is proportional to the amplitude of the signal. An FM radio carrier around 100 MHz is limited to modulation of +/- 0.1 MHz. Normal FM stereo broadcast is within +/- .053 MHz.