This page discusses functional genomics and its techniques for determining gene functions post-genome identification, highlighting microarray analysis as a key method. Microarrays measure mRNA abundan...This page discusses functional genomics and its techniques for determining gene functions post-genome identification, highlighting microarray analysis as a key method. Microarrays measure mRNA abundance across numerous genes, indicating gene activity and expression variations in different tissues and conditions, including development stages and responses to external factors. They visualize transcript levels with fluorescence, revealing patterns of tissue-specific or temporal gene expression.