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Dictionary » C » Chromatin ChromatinDefinition noun, plural: chromatins A complex of nucleic acids (e.g. DNA or RNA) and proteins (histones), which condenses to form a chromosome during cell division. In eukaryotic cells, it is found within the cell nucleus whereas in prokaryotic cells, it is found within the nucleoid. Its functions are to package DNA into a smaller volume to fit in the cell, strengthen the DNA to allow mitosis and meiosis, and to serve as a mechanism to control expression.
It can be easily recognized through staining, hence its name, which literally means coloured material.
Related terms: barr chromatin body, Y chromatin, chromatin body. Compare: chromosome. ![]()
Please contribute to this project, if you have more information about this term feel free to edit this page ![]()
Results from our forumApoptosis in the substantia nigra... nigra in four normal aged subjects. Morphological characteristics of apoptosis, such as contact loss with surrounding tissues, cell shrinkage and chromatin condensation, were found in 2% of the total number of melanized neurons analyzed. Although endoplasmic reticulum appeared normal, mitochrondria ...
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Log paperHi!! I just finished a chromatin practical and I have to create on a log paper the relationship between the molecular weight of the histons and their travel distance from the SDS-Page. I am quite confused about it. Do I have to plot ...
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Re: Animal cell nucleus shape changes... for a while. Transcription occurs in the nucleus, but then the mRNA is moved out of the nucleus to the cytosol where translation takes place. Chromatin is an important part of the contents of the nucleus, but other structures (for instance splicosomes) are also present and vital for gene expression. ...
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Re: Animal cell nucleus shape changesIn most of the Eukaryotic cells the nucleus has role as a characteristic feature. There is a double membrane around the nucleus and it contains chromatin material. So nucleus is an important part of Eukaryotic cells because it stores genetic information. During the cell division e.g. in mitosis ...
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Animal cell nucleus shape changes... is a little peculiar case, since during it the nuclear membrane briefly disappears and is re-assmbled for both of the daughter cells after the new chromatin molecules have been delivered to their correct destinations. And in my opinion, for most cells cell division is the only stage when the nucleus ...
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