In neurospora, this process is responsible for 3 to 1 or 5 to 3 allele ratios, and occurs when a double stranded break is repaired by a single strand from a homologous chromosome, resulting in a double Holliday junction that is resolved in a particular way.
This process results in a statistically significant increase in the sum of squares of condensed fragment length in a test devised by Sawyer, and in humans this process is responsible for extensive balancing selection among HLA-D alleles. The RecLOH process occurring on Y chromosomes is a version of this process occurring in palindromic regions, and in yeast, an instance of this process is catalyzed by the HO gene and occurs between the MAT locus and either the HMR or HML cassettes, results in mating type switching. In neurospora, this process is responsible for 3 to 1 or 5 to 3 allele ratios, and occurs when a double stranded break is repaired by a single strand from a homologous chromosome, resulting in a double Holliday junction that is resolved in a particular way. For 10 points, name this recombination process, which, unlike crossing over, results in unequal exchange between homologous chromosomes, transforming the target segment into a sequence identical to the donor.
This process results in a statistically significant increase in the sum of squares of condensed fragment length in a test devised by Sawyer, and in humans this process is responsible for extensive balancing selection among HLA-D alleles.
Gene {conversion} (Prompt on “recombination” or “Chromosome exchange” or “Chromosome/chromatid/strand exchange”, but do not accept “Crossing over”)