Abstract
The activities of several enzymes were determined in homogenates of Drosophila melanogaster embryos and early larvae. The dehydrogenases of isocitrate (IDH), α-glycerophosphate (αGPDH), glucose 6-phosphate (G6PD), and 6-phosphogluconate (6PGD) show no increase in activity until late in the embryonic period (about 20 hr). The increase in the activity of these enzymes begins before hatching and continues into the larval period. Embryos heterozygous at loci controlling specific enzymes, IDH, αGPDH, G6PD, and ADH (alcohol dehydrogenase), have only the maternal form of each enzyme throughout most of the embryonic period. Paternal and hybrid forms of the enzymes are found at hatching. This corresponds to the increase in total activity for each of the enzymes. The results are discussed in terms of the control of gene expression in development.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
