Despite the name, the primary modern flavoring ingredients in a cola drink are sugar, citrus oils (from oranges, limes, or lemon fruit peel), cinnamon, vanilla, and an acidic flavorant. Manufacturers of cola drinks add trace ingredients to create distinctively different tastes for each brand.
Features of inbred mice. A strength of the laboratory mouse as a model system results from the availability of hundreds of inbred strains which harbor different characteristics, including some that are prone to develop specific types of cancers.
These nomenclature changes affect the strain names for inbred 129 mice and all mice carrying transgenes, or spontaneous or targeted mutations on a 129 background. Many targeted mutations (e.g. , knockouts) are maintained on a mixture of C57BL/6 and a particular 129 strain.