Question

what is holiday junction ​

Answer 1

A Holliday junction is a branched nucleic acid structure that contains four double-stranded arms joined together. These arms may adopt one of several conformations depending on buffer salt concentrations and the sequence of nucleobases closest to the junction

Answer 2

A holiday junction is a cross-shaped structure that forms during the process of genetic recombination, when two double stranded DNA molecules become separated into four strands in order to exchange segments of genetic information.