TropHort Directory links to websites and science articles in biology and the applied life sciences agriculture, horticulture and forestry. The site focuses on the production of fruits and vegetables and features numerous primary industry resources.

Learn about PCR, the polymerase chain reaction. Find listings of PCR protocols and methods. Also includes the latest published research and news on PCR.

Learn about epigenetics, epigenomics and the histone code, and techniques and protocols to study these changes. Protocols and links on DNA methylation specific PCR, chromatin immunoprecipitation, microarray, bisulfite DNA, 5-aza-2'-deoxycytidine treatments and sodium bisulfite DNA sequencing.