In single stranded nick__________(a) The 3’-OH end of the nick invades other complete strands(b) Both the strands undergo fork regression(c) The nick is treated like an okazaki fragment point(d) The nick is bypassed without repairI got this question by my college director while I was bunking the class.My question is based upon Homologous DNA Recombination topic in section Genetic Recombination of Cytogenetics

In single stranded nick__________(a) The 3’-OH end of the nick invad

1.	In single stranded nick__________(a) The 3’-OH end of the nick invades other complete strands(b) Both the strands undergo fork regression(c) The nick is treated like an okazaki fragment point(d) The nick is bypassed without repairI got this question by my college director while I was bunking the class.My question is based upon Homologous DNA Recombination topic in section Genetic Recombination of Cytogenetics
Answer» The correct answer is (a) The 3’-OH end of the nick INVADES other COMPLETE strands For explanation I would say: In single stranded nick the 5’ end of the nick forms the base pair and normal DNA strand with the available strand but the 3’ end has to invade the 5’ end to bypass the nick. In this bypass the nick is repaired and not left as it is.

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