chi sequence

chi se·quence

an octomeric sequence of bases in DNA that participates in RecBC-mediated genetic recombination.
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These movements added to the Ai Chi sequence or used separately, depending on the case.
In addition, we used the most recent reference sequences (mentioned above) to perform an updated bioinformatics survey of the Chi sequence (5'GCTGGTGG-3') for the CYP21 genes.
We found no exact match for a Chi sequence throughout the CYP21 genes; however, we did find a Chi-like sequence (1 mismatch in 5'-GCTGGTGG-3') at 6 sites within or in the vicinity of intron 2 (Fig.