Labrador Retriever coat colour genetics fur colour but those with black skin can potentially produce a Dudley. Dudleys breed true for both fur and skin. The ability of the E locus to override the coat colour directed by the B locus is a classical example of epistasis, where multiple genetic loci affect the same observed trait. The E locus also determines whether the phenotype due to the third genetic locus affecting coat colour will be evident. This locus is recognised as affecting coat colour through the expression of pheomelanin, the pigment responsible for red and yellow pigmentation. The effects on pheomelanin pigmentation are only seen
This Is Colour of this, the band went on to tour the album and remained a popular live heavy music act all over the UK and began to tour Europe, they shined particularly in Leeds and London. Following the release of No Brainer, This Is Colour released two singles, "Make The Most" (Recorded and produced by Keir Atkinson, Little Massingham, Norfolk, 2010) and "Exhausting The Resource" (Recorded and produced by Keir Atkinson, LP, Bury St Edmunds, Suffolk, 2011), for which This Is Colour created their first music video, directed and edited by their guitarist Tom Cronin, with the help of photographer Jordan Green.