Genes carry instructions to make protein that affect body's cells and their physical activity. They also play an important role in the occurrence of various characteristics in the body. Recently, scientists in the new field of science known as genomics have studied the genetic instructions. Genomics deals with the discovery of all the sequences in the entire genome of organisms and is used to study the sequence, structure and function of the genome. In the parasitic infections there is a real need to genomics due to necessity of developing vaccines and new drugs (as a result of drug resistance), diagnosing infections, pathogenesis, diagnosing cell signaling, studying the unknown immunology pathways, control and prevention, and the relationship between parasite and host. Also, genomics offers novel insights into the phylogeny, parasite and host relationship, physiology, biochemistry, biology, taxonomy, etc. Considering these points, parasitology and genomics are closely related and it is necessary to use molecular techniques to achieve the aforementioned objectives.

Keywords: Parasites, genomics, genome

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