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.
am radio ranges from 535 to 1705khz kilohertz or thousands of cycles per second of electromagnetic energy these are the numbers you see on your am radio dial n ote in the tan area at the left of the illustration below that am radio waves are of a lower frequency than either fm radio or tv waves or the most part fm and tv signals are line of sight although this means that fm stations don t interfere with each other this characteristic creates a couple of other problems first these waves go in a straight line and don t bend around the earth as am ground waves do