Colonies with unique pigment production are 1-1.5 mm in diameter.

The "C" gene codes for the enzyme tyrosinase, the first step in pigment production.

If a cat has the dominant C allele, then the cat is non-albino and full pigment production occurs.

In its homozygous form, aa, this results in black pigment production throughout the growth cycle of the hair.

Related to Mycobacterium fortuitum: can be distinguished by its intense pigment production, and its slow rate of growth.

Some mycobacteria produce carotenoid pigments without light; others require photoactivation for pigment production.

From 1778 he could change the works themselves, into a paper mill and pigment production, in another example of his vision and commercial talent.

However, introduction of the black mutant caused the temperature-dependent changes in pigment production to become obvious.

The company also started pigment production from October 1995.

Nutrient agar is usually used for growth of non-fastidious organisms and observation of pigment production.