Biomass is biological material derived from living, or recently living organisms. It most often refers to plants or plant-based materials which are specifically called lignocellulosic biomass. As an energy source, biomass can either be used directly via combustion to produce heat, or indirectly after converting it to various forms of biofuel. Bioenergy is renewable energy made available from materials derived from biological sources. Though wood is still our largest biomass energy resource, the other sources which can be utilized include plants, residues from agriculture or forestry, and the organic component of municipal and industrial wastes. Even the fumes from landfills can be used as a biomass energy source. Biohydrogen is a potential biofuel obtainable from both cultivation and from waste organic materials. Bioinformatics, an amalgam science that associates biological data with techniques for information storage, distribution, and analysis to support compound areas of scientific research, comprising biomedicine. It is nurtured by high-throughput data-generating experiments, including genomic sequence. Progress of effective algorithms for measuring sequence likeness is an important objective of bioinformatics