Is the difference in alpha-amylase activity in the strains of Drosophila melanogaster with different allozymes due to transcriptional or posttranscriptional control?

Abstract excerpt

The alpha-amylase in Drosophila melanogaster is a highly polymorphic enzyme, at both the allozyme level and the specific activity level. This enzyme changes its specific activity drastically depending on both food conditions and developmental stages, and it has been suggested that the ability to change its activity depending on the source of food has positive correlation with fitness. But the cause of the...

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