40 research outputs found
Studies on germ cells. IV. Protoplasmic differentiation in the oocytes of certain Hymenoptera
No Abstract.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/50238/1/1050260304_ftp.pd
Studies on germ cells. I. The history of the germ cells in insects with special reference to the Keimbahn-determinants. II. The origin and significance of the Keimbahn-determinants in animals
No Abstract.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/50235/1/1050250302_ftp.pd
Sex Determination in Honeybees: Two Separate Mechanisms Induce and Maintain the Female Pathway
Sex determination in honeybees is realized by the csd and the fem gene that establish and maintain, throughout development, sexual fates via the control of alternative splicing
Künstliche Parthenogenese
Petrunkewitsch, A. Künstliche Parthenogenese, 1904
Alexander Ivanovitch Petrunkevitch (1875-1964) was a Russian arachnologist. From 1910 to 1939 he described over 130 spider species. One of his most famous essays was The Spider and the Wasp.https://digitalcommons.rockefeller.edu/pamphlets-offprints-and-reprints/1071/thumbnail.jp