The characteristic of good a reporter protein is that it should be easy to assay or detect and is not present normally in the test system. Selection of the reporter system also depends on the experimental system, sensitivity needs and the available detection strategy, be it absorbance, fluorescence or bioluminescence.
1 Included among these breeds are the English Toy Terrier and the Yorkshire Terrier. 2  While small, they retain true terrier character and are not submissive  lap dogs 3  . Bull type Terriers: The Bull and Terrier types were originally combinations of bulldogs and terriers as general mixed breed bull-baiting and pit dogs. Toy terriers: Bred down from larger terriers, these terriers are shown in the Toy or Companion group. 2  Included among these breeds are the English Toy Terrier and the Yorkshire Terrier. 3  While small, they retain true terrier character and are not submissive  lap dogs .
Patterdale Terrier Dog Breed. Other Names: Black Fell Terrier; Overview. The Patterdale Terrier, also known as the Black Fell Terrier, is an extremely hardy, working-class animal. Originally bred in northern England to be a hunting dog, the Patterdale is intelligent, loyal, and independent, and is known for its excellent health. This breed is devoted to its family, but is happiest when it is roaming the woods searching for small animals upon which to prey.