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<p>a gauge needle several times to physically tear the DNA into fine pieces.<br/>
* <a href="page.php?w=French_pressure_cell_press">French pressure cells</a> pass DNA through a narrow valve under high pressure to create high shearing forces. With a French press, the shear force can be carefully modulated by adjusting the piston pressure. The Press provides a single pass through the point of maximum shear force, limiting damage to delicate biological structures due to repeated shear, as occurs in other disruption methods.<br/>
* In transposome mediated</p><p>
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