Abstract
The influence of urea on the morphological characters of D. melanogaster was studied. The concentration of 10%, 20%, 30%, and 40% of urea was treated along with control on the first instar larvae. The larval mortality was observed and it showed 50% mortality for 40% urea concentration. Then the length and breadth of pupae was measured. It revealed a significant difference (P < 0.01%) between different concentrations of urea treatment. Later the different morphological characters of metamorphosed adult flies of both males and females such as Face Width (FW), Head Width (HW), Thorax Length (TL), Wing Length and Wing Width (WW) were quantified separately. It revealed a significant difference (P < 0.001%) between the different characters and also it showed that as the concentration of urea increased the size of the morphological characters increased. The t test was conducted to check the difference between male and female morphological characters. It revealed a significant difference between male and female flies. The study mainly highlights that maximum urea concentration can cause 50% mortality in larvae, and the ones that survived have shown to have developed larger morphological characters.
