This page discusses the three-point cross method for mapping three linked genes simultaneously. It involves crossing pure breeding lines to create a trihybrid and testcrossing to observe phenotypic di...This page discusses the three-point cross method for mapping three linked genes simultaneously. It involves crossing pure breeding lines to create a trihybrid and testcrossing to observe phenotypic distributions, allowing for the identification of rare double crossover events. The method aids in calculating recombination frequencies, correcting for undetected double crossovers, and improving genetic mapping accuracy.
