Abstract
How to Choose the Right Mate
Highlights
Programmed recombination plays an important role in differentiation, antigenic variation, and evolution in many systems
The allele present at mat1 is converted by copying the genetic information from mat2-P or mat3M silent donor loci by a non-reciprocal homologous recombination process
The broken DNA does not use the intact sister chromatid, but instead engages recombinational repair by copying the genetic information located between the H1 and H2 sequence of one of the silent donors [7]
Summary
Programmed recombination plays an important role in differentiation, antigenic variation, and evolution in many systems. The sexual region is located on the right arm of chromosome 2 and contains three cassettes—the expressed mat1 and the two silent mat2-P and mat3-M loci. The expressed mat1 locus contains the P genes (Pi and Pc) or the M genes (Mi and Mc) that determine the mating type of the cell [3].
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