Some peculiarities of the expression of exterases in larvae and adult individuals of Drosophila virilis.

It was discovered that certain isoenzymes of esterases in Drosophila virilis are represented by fast and slow subfractions. In various inbred lines, pecularities are observed in the distribution of activity between these subfractions, so that in adult individuals of some lines, the fast subfraction is the most active, and in others the slow subfraction. During the process of ontogenesis, a redistribution of activity between the two subfractions is observed.