Microarray
Microarray Information Introduction Procedure Interpretation Applications References Introduction A microarray is a laboratory tool that can detect the expression of thousands of genes at the same time. Microarrays, also known as DNA microarrays, are microscope slides with thousands of tiny dots in predetermined locations, each of which encodes a known DNA sequence or gene. The names "gene chips" and "DNA chips" are widely used to describe these slides. Each slide's DNA molecules act as probes for detecting gene expression, also known as the transcriptome or the collection of messenger RNA (mRNA) transcripts expressed by a group of genes. Image Source: Biorender.com Procedure In order to do a microarray analysis, mRNA molecules are typically extracted from both an experimental and a reference sample. For example, the reference sample may come from a healthy individual, whereas the experimental sample could come f...