a blot on his escutcheon a blot on the landscape biological blot blot on one's escutcheon blot on one's scutcheon blot one's copy book blot one's copybook blot out blot out a place blot something out dark blot hemorrhage ink blot northern blot analizi northern blot analysis slot blot southern blot southern blot southern blot analizi southern blot analysis southern blot technique southern blot tekniği vestern blot western blot western blot analizi western blot analysis