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Localised unwinding of a circular DNA molecule, which occurs during DNA replication, induces torsional stress into the remaining portion of the molecule because the ends of the strands are not free to rotate. As a result, the DNA molecule twists back on itself, like a twisted rubber band, forming supercoils. | Localised unwinding of a circular [[DNA|DNA]] molecule, which occurs during DNA replication, induces torsional stress into the remaining portion of the molecule because the ends of the strands are not free to rotate. As a result, the DNA molecule twists back on itself, like a twisted rubber band, forming supercoils <ref>Lodish,H.,Berk,A.,Kaiser,C.A.,Krieger,M.,Bretscher,A.,Ploegh,H., and Amon,A. (2013) Molecular Cell Biology,7th Edition, International Edition.</ref><br> | ||
=== References === | |||
<references /><br> | |||
Revision as of 02:02, 25 October 2013
Localised unwinding of a circular DNA molecule, which occurs during DNA replication, induces torsional stress into the remaining portion of the molecule because the ends of the strands are not free to rotate. As a result, the DNA molecule twists back on itself, like a twisted rubber band, forming supercoils [1]
References
- ↑ Lodish,H.,Berk,A.,Kaiser,C.A.,Krieger,M.,Bretscher,A.,Ploegh,H., and Amon,A. (2013) Molecular Cell Biology,7th Edition, International Edition.