The B locus in dogs controls whether the dog is liver. Liver is recessive (b), so a dog needs two copies of the allele in order to be liver. If a dog is bb on the B locus then any and all black in its coat will become a brownish colour. Bb and BB have no effect.
Micro: Mini, small, tiny. Micro is also a term used in the RTS Starcraft, as a term for modified unit control. Micro can also refer to the descriptions of micro-organisms. Micro as a unit of measurement is defined as: One millionth..
An organism that is microscopic or submicroscopic, which means it is too small to be seen by the unaided human eye. Supplement. Microorganisms were first observed by Anton van Leeuwenhoek in 1675 using a microscope of his own design. Examples of microorganisms include bacteria, fungi, archaea, and protists.