Table 1: Comparison chart of nonbiased methods to analyze specific genomic regions.

MethodNon-biased analysisDNA analysisProtein analysisRNA analysisInclude enzyme reactionsLow-copy
number genes
Need transgenicAllele-specific analysis

iChIPYesFeasibleFeasibleFeasibleNoFeasibleYesFeasible
3CYesFeasibleNot feasibleNot feasibleYesFeasibleNoNot feasible
PIChYesNot reportedFeasible
(telomeres)
Not reportedNoNot reportedNoNot feasible