A Comparison of the Diffusible Substances Concerned with Eye Color Development in Drosophila, Ephestia and Habrobracon

A Comparison of the Diffusible Substances Concerned with Eye Color Development in Drosophila, Ephestia and Habrobracon.

Development of Eye Colors in Drosophila: Fat Bodies and Malpighian Tubes in Relation to Diffusible Substances.

T HAS been shown that diffusible substances are involved in the differI entiation of certain eye colors in Drosophila melanogaster (EPHRUSSI and BEADLE 1937a; BEADLE and EPHRUSSI 1937). Fat bodies are concerned with the production of one of these substances (v+ substance); two substances (v+ and cn+ substances) can be obtained from the Malpighian tubes of flies of certain genotypes. Preliminary...

Development of Eye Colors in Drosophila: Diffusible Substances and Their Interrelations.

N EXPERIMENTS reported in a series of papers by the authors an I attempt has been made to attack various problems concerned with eye color development in Drosophila melanogaster by the use of the technique of transplantation. These experiments have led to the elaboration of a scheme bearing on one phase of the general problem of the relation of genes to eye color development. Evidence has been ...

a comparison of teachers and supervisors, with respect to teacher efficacy and reflection

supervisors play an undeniable role in training teachers, before starting their professional experience by preparing them, at the initial years of their teaching by checking their work within the proper framework, and later on during their teaching by assessing their progress. but surprisingly, exploring their attributes, professional demands, and qualifications has remained a neglected theme i...

Malpighian Tubes as Sources of Diffusible Substances Development of Eye Colors in Drosophila: Fat Bodies