The materials and methods section should be complete enough so that another student with the same background, but unfamiliar with the experiment, could perform the same experiment without additional instructions.
(The materials and methods section; should be; complete enough) (another student with the same background, but unfamiliar with the experiment; could perform; the same experiment)
The materials and methods section another student with the same background, but unfamiliar with the experiment
should be could perform
complete enough
the same experiment