SEX DIFFERENCES AND ENVIRONMENTAL INFLUENCE ON DOPA-OXIDIZING ACTIVITY IN DROSOPHILA MELANOGASTER
Open Access
- 1 April 1961
- journal article
- research article
- Published by University of Chicago Press in The Biological Bulletin
- Vol. 120 (2) , 157-162
- https://doi.org/10.2307/1539373
Abstract
1. Colorimetric determinations of dopa-oxidizing activity in newly emerged adults and late larvae close to pupation time showed adult Drosophila melanogaster females to have higher activity rates than adult males. This may also be true for larvae, but the difference here was slight. The larvae showed higher rates than adults. 2. Larvae kept four hours at 43% relative humidity (R. H.) showed higher rates of dopa-oxidizing activity than did those kept at 100% R. H. 3. Contrary to what was expected, larvae kept at 100% R. H. pupated at a faster rate than those kept at 43%. 4. Female larvae and adults were found to be heavier than males. 5. The postulated role of tyrosinase in puparium formation is discussed.This publication has 1 reference indexed in Scilit: