<prompt> E6, E7 genes of which virus are implicated in oncogenesis -EBVCMVHTLV-1HPV  <response>: Ans. is d i.e., HPV o HPV selectively infects the epithelium of skin and mucous membrane and may immortalize the keratinocytes leading either asymptomatic infection, or warts or neoplasia. o Products of E-genes E6, E7 are related to immortalization or malignant transformation of keratinocytes by interfering with p53 and Rb genes, respectively. 