The 'Advanced Methods' series is intended for advanced undergraduates, postgraduates and established research scientists. Titles in the series are designed to cover current important areas of research in life sciences, and include both theoretical background and detailed protocols. The aim is to give researchers sufficient theory, supported by references, to take the given protocols and adapt them to their particular experimental systems. This title looks at the new microarray and microplate-based technologies which facilitate large-scale analysis of DNA sequence variants, mRNA molecules and proteins. The book provides a review of the various methodologies being used to identify genetic variants and gene regulation and guides readers through both the application of these methodologies and experimental procedures.