Microarrays

Microarrays are powerful tools used to analyze the expression of thousands of genes at once. They work by attaching thousands of known DNA sequences to a small chip. When labeled cDNA (made from your RNA samples) is added, it binds to matching sequences on the chip allowing researchers to measure which genes are active and at what levels. This technology is especially useful for comparing gene expression between different conditions, identifying biomarkers, or exploring the effects of treatments. Because microarrays require a certain amount of high-quality cDNA, RNA amplification is often used beforehand to ensure accurate and reliable results, especially when working with limited or degraded samples.