<prompt> Which of the following is true regarding lattice formationAssociated with precipitation and not agglutinationAssociated with agglutination and not precipitationAssociated with both precipitation and agglutinationAssociated with neither precipitation and nor agglutination  <response>: Lattice formation is possible only in the zone of equivalence.in the zones of antibody or antigen excess lattice doesnt enlarge as their respective valencies are stisfied,this lattice hypothesis holds good for agglutination also. Ref: anantnarayan and panikers 10 th edition. 