Experiments are described that provide an opportunity to estimate the genetic limits of the structural (amino acid coding) portion of the rosy locus (3:52.0) in Drosophila melanogaster, which controls the enzyme, xanthine dehydrogenase (XDH). This is accomplished by mapping experiments which localize sites responsible for electrophoretic variation in the enzyme on the known genetic map of null-...

Insect pests are soft-bodied and tiny creatures with plant sap sucking habits that devastate various agricultural crops, fruit trees, ornamental plants several vegetables. To control these insect four IPM techniques were used in tomato field an aim to minimize the use of synthetic pesticides. Five colours sticky traps (yellow, green, blue, black red), different light trap (red, yellow, green wh...

The effect of simple DNA sequence polymorphisms on intragenic recombination in the rosy locus of Drosophila melanogaster was assayed. Two crosses were performed involving nearly identical molecular distances between selective ry null mutations (3778 nucleotides and 3972 nucleotides). In one heterozygote (ry606/ry531), in addition to the nucleotide substitution ry- mutations, there were 11 simpl...

The randomization of a complete first order theory T is the complete continuous theory T R with two sorts, a sort for random elements of models of T , and a sort for events in an underlying atomless probability space. We show that if T has the exchange property and acl = dcl, then T R has a strict independence relation in the home sort, and hence is real rosy. In particular, if T is o-minimal, ...

The locations of crossover junctions and gene conversion tracts, isolated in the rosy gene of Drosophila melanogaster, were determined using DNA sequencing and denaturing gradient gel electrophoresis. Frequent DNA sequence polymorphisms between the parental genes served as unselected genetic markers. All conversion tracts were continuous, and half of the reciprocal crossover events had conversi...