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WORKSHOP BOOK Fluorescent in Situ Hybridisation - FISH - on Human Sperm

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<strong>Sperm</strong>-<str<strong>on</strong>g>FISH</str<strong>on</strong>g><br />

protocol<br />

17<br />

<strong>Sperm</strong> nuclear architecture<br />

Unique, well organized nuclear architecture<br />

different from somatic cells<br />

Extreme compactness of chromat<str<strong>on</strong>g>in</str<strong>on</strong>g><br />

1) each chromosome at dist<str<strong>on</strong>g>in</str<strong>on</strong>g>ct nuclear<br />

territory<br />

2) centromeres of n<strong>on</strong>-homologous<br />

chromosomes<br />

form chromocentres<br />

3) telomeres <str<strong>on</strong>g>in</str<strong>on</strong>g>teract with each other form<str<strong>on</strong>g>in</str<strong>on</strong>g>g<br />

dimers and tetramers<br />

18

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