Nick

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A nick is a break in the DNA strand, resulting from a broken phosphodiester bond on the sugar phosphate backbone of DNA [1].

A nick can occur in both strands of a double stranded DNA molecule as long as two nicks are not parallel to each other.

References

  1. Hartl, D.L. Jones, E.W. (2009). Genetics: analysis of genes and genomes, 7th edition, Jones and Bartlett Publishers, Inc. Page 723
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