Edward Wilson coined the term biodiversity to describe the diversity seen at the different levels of biosphere. We find heterogeneity not only at species level but also at the level of macromolecules within cells. There are three different types of biodiversity patterns seen most commonly, they are genetic, species and ecological. Genetic diversity refers to genetic the seen amongst a single species found in different regions. Rauwolfiavomitaria shows different concentration of reserpine in different regions of Himalayas, there are around 1000 different types of mangoes found which have different flavours, colours, fibre content and even shelf-life.