Answer: WNV is an enveloped virion containing a single-stranded, positive-sense RNA genome. The genome consists of a single open reading frame of approximately 11 kb with no polyadenylation tail at the 3′ end.
WNV genome is composed of an 11 kb positive RNA fragment that is translated to form a polyprotein. This polyprotein consists of three structural (C, prM/M and E) and seven non-structural proteins (NS1, NS2A, NS2B, NS3, NS4A, NS4B and NS5) [25]. Phylogenetically, WNV belongs to two major lineages, Lineage 1 and 2.28 Nov 2014
DDT is biologically magnified and concentrated as it moves through the food web. This increase in concentration is due to Metabolism of DDT which excretes more slowly than the nutrients which moves from one trophic level to next. so DDT accumulates in the body especially in the Fats.