8 ﹒ Whichofthefollowingarerequiredto DNAsequencehomology withtheprobe:a)highsalt b)lowsalt c)hightemperature d)lowtemperature 9 ﹒ Stringencyisdegreeofdifficultyfo。C)determinetheconcentrationofanmRN d)determinetheintron‐exonjunction. ......