Among the Statements About Antigen Preservation, Which Among the Following

Multiple Choice

Among the statements about antigen preservation, which among the following is not correct?

A) All reactions with formaldehyde-fixed specimens can be reversed.
B) The quality of antigen preservation varies with respect to the type of fixative used.
C) The ability to preserve antigens is important when choosing a fixative to use.
D) Some fixation reactions are reversible in aldehyde-fixed specimens.