Lila Moss, 20, is the spitting picture of supermodel mother Kate in slinky slip costume

These Moss genes should be robust. Lila Moss attended Royal Academy of Arts Summer season Preview Occasion in London Tuesday wanting each inch like her supermodel mother, Kate. The 20-year-old model star wore a slinky black satin Versace slip costume on the pink carpet, a ’90s-inspired model that’s virtually synonymous with catwalker Kate, 49. Who…