For many uses in the laboratory, polyclonal antibodies work well, but for some types of assays, they lack sufficient because they cross-react with inappropriate antigens.
specificity
sensitivity
accuracy
reactivity

Accuracy.

Explanation:

In case of polyclonal antibodies, there is a chances that the result may vary. This is because the affinity of inappropriate antigen can be same as like of appropriate antigen towards antibody.

The polyclonal antibody might bind with inappropriate antigen in case assays performed in laboratory.

There will be no accuracy of results in this case.

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.