10 Diagnostic apparatus for the detection of disease, namely, cancer, precancer, or disease or condition that predisposes an individual to cancer; apparatus for medical diagnostic testing in the fields of cancer or other tissue-based diagnostic testing, cytology and cell-based testing; apparatus and kits for collecting biological samples comprised of stool collection container, holder for stool collection container, stool sampling device, stool sample transport tube, and protein stabilization buffers; containers for collecting biological samples for medical purposes; Colorectal cancer screening test kit comprised of implements and container for collecting patient stool samples for analysis