Which procedure allows the simultaneous analysis of multiple tissue samples?

The procedure that allows the simultaneous analysis of multiple tissue samples is a tissue microarray. This technique involves taking small cores of various tissue samples and embedding them into a single paraffin block. By doing so, numerous individual samples can be processed and analyzed together, which not only saves time but also ensures that the slides are subjected to the same processing conditions, enhancing comparability across samples.

Tissue microarrays are particularly valuable in research settings, allowing for high-throughput analysis in studies involving biomarkers, disease patterns, and therapeutic responses. They facilitate the examination of large numbers of specimens in a standardized way, leading to more robust statistical analyses and conclusions.

Other procedures, such as tissue sectioning, involve preparing individual samples but do not inherently allow for the simultaneous analysis of multiple specimens in their structure. Cell staining is important for visualizing specific components within tissues or cells, but it does not address multiple sample analysis simultaneously. Microscopy is a method used to observe tissue samples but also does not consolidate multiple samples for analysis on a single platform in the way that a tissue microarray does.