Feulgen reaction is a cytochemical test for the detection of:: (A) DNA, (B) m-RNA, (C) t-RNA, (D) All of the above
Answer is A. Feulgen reaction: It is an aldehyde specific reaction based on the formation of a purple coloured compound when aldehyde reacts with fuchsin-sulfuric acid. It is used in histology to identify chromosomal material or DNA in cell specimens. Ref: DNA Cytometric Analysis By Andre's Sampedro, Page 78