SOLUBLE ANTIGEN AND IMMUNOGLOBULIN ARE COMBINED TO HAVE PRECIPITATION

VAN DE WAALS FORCES, HYDROPONIC BONDS, IONIC BONDS AND HYDROGEN BONDS ARE SEVERAL TYPES OF NONCOVALENT BONDS HOLDING AFFINITY

REPRESENTS THE SUM OF ALL ATTRACATIVE FORCES BETWEEN ANTIGEN AND ANTIBODY

IMMUNOFIXATION ELECTROPHORESIS REFERS TO THE ANTISERUM THAT IS APPLIED DIRECTLY TO THE GEL'S SURFACE RATHER THAN PLACED IN A TROUGH.

IT IS A DOUBLE DIFFUSION TECHNIQUE THAT INCORPORATES ELECTROPHORESIS CURRENT TO ENHANCE RESULTS.

THE FAHEY AND MC KELVEY METHOD USES MEASUREMENTS TAKEN BEFORE THE POINT OF EQUIVALENCE IS REACHED, ALSO KNOWN AS:

SEROLOGICAL IDENTITY IS REPRESENTED BY FUSION OF LINES AT THEIR JUNCTION FORM AN ARC OF PRESENCE OF COMMON EPITOPE.

IN THIS TECHNIQUE BOTH AG AND AB DIFFUSE INDEPENDENTLY THROUGH A SEMISOLID MEDIUM IN TWO DIMENSIONS: HORIZONTALLY AND VERTICALLY

HOW LONG IS THE INCUBATION PERIOD IN A MOIST CHAMBER TO FORM PRECIPITIN LINES WHERE THE MOVING FRONT OF THE AG MEETS THAT OF AB?

RADIAL IMMUNODIFFUSION (RID) IS A TECHNIQUE WHERE ANTIBODY IS CONSISTENTLY DISTRIBUTED IN THE SUPPORT GEL AND ANTIGEN IS APPLIED TO A WELL CUT INTO THE GEL.

THIS PROVIDES ACCURATE AND PRECISE QUANTITATION OF SERUM PROTEINS

POSTZONE PHENOMENON OCCURS, IN WHICH SMALL AGGREGATES ARE SURROUNDED BY EXCESS ANTIGEN, AND AGAIN NO LATTICE NETWORK IS FORMED.

THIS TECHNIQUE IS USED AS CONFIRMATORY TEST TO DETECT ANTIBODIES TO HIV-1

EQUILIBRIUM CONSTANT (K) REPRESENTS THE SUM OF THE RATE OF THE ROWARD AND REVERSE REACTIONS OF AB AND AG ASSOCIATION.

AB IN FLUIDS CAN BE MEASURED BY MEANS OF TURBIDIMETRY OR NEPHELOMETRY

THIS METHOD WHERE AG IS ALLOWED TO DIFFUSE TO COMPLETION AND WHEN EQUIVALENCE IS REACHED, THERE IS NO FURTHER CHANGE IN THE RING DIAMATER, THIS WAS DEVELOPED BY;

MOST OUCHTERLONY PLATES ARE SET UP WITH A CENTRAL WELL SURROUNDED BY ___ EQUIDISTANT OUTER WELLS.

IN IMMUNOELECTROPHORESIS, THE ___ IS PLACED IN TROUGHS AND THE GEL IS INCUBATED FOR 18 TO 24 HOURS.

OUCHTERLONY DOUBLE DIFFUSION IS STILL USED TO IDENTIFY FUNGAL ANTIGENS SUCH AS CANDIDA, BLASTOMYCES, ASPERGILLUS etc.