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Alpha satellite DNA: Difference between revisions
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'''Alpha satellite DNA''' is a tandemly organized type of repetitive DNA that comprises 5% of the genome and is found at all human [[Cetromere|centromeres]]. A defined number of 171-bp monomers are organized into chromosome-specific [[Higher-order repeats|higher-order repeats]] (HORs) that are reiterated thousands of times. | '''Alpha satellite DNA''' is a tandemly organized type of repetitive DNA that comprises 5% of the genome and is found at all human [[Cetromere|centromeres]]. A defined number of 171-bp monomers are organized into chromosome-specific [[Higher-order repeats|higher-order repeats]] (HORs) that are reiterated thousands of times. | ||
[[File:1296_1409_109-satellite-dna.jpg| | |||
[[File:1296_1409_109-satellite-dna.jpg|left|400px]] | |||
Satellite DNA comprises very large arrays of tandemly repeated noncoding DNA, usually megabases in size, which form the major structural constituent of hetero-chromatin, a tightly packaged condensed state of transcriptionally suppressed DNA. | Satellite DNA comprises very large arrays of tandemly repeated noncoding DNA, usually megabases in size, which form the major structural constituent of hetero-chromatin, a tightly packaged condensed state of transcriptionally suppressed DNA. | ||
