The dose effect ofma-l + andry + on xanthine dehydrogenase activity inDrosophila melanogaster

Autor: E. H. Grell
Rok vydání: 1962
Předmět:
Zdroj: Zeitschrift f�r Vererbungslehre. 93:371-377
ISSN: 1617-4623
1617-4615
DOI: 10.1007/bf00888795
Popis: Two loci,ma-l+ andry+, necessary for xanthine dehydrogenase activity inDrosophila melanogaster have been studied for dosage effects utilizing deficiencies and duplications induced for this purpose. Comparisons of one, two and three doses ofma-l+ in the female or one and two doses in the male indicate that there is no increase in specific enzyme activity with dose. On the other hand, comparisons of one, two and three doses ofry+ in the male and female reveal an increase in enzyme activity that is roughly proportional to dose. Since dosage ofry+ is limiting, whereas that ofma-l+ is not, the final concentration of xanthine dehydrogenase is shown to depend on the number of doses ofry+.
Databáze: OpenAIRE