DIPLOIDS FROM UNFERTILIZED EGGS IN HABROBRACON
نویسندگان
چکیده
منابع مشابه
Induced Mutations in Habrobracon Eggs
S long ago as 1921 HOLTHUSEN observed an effect of anoxia on X-rayed A cells. Interest in this factor and its relation to radiation damage has recently been revived. BACQ (1951) has reviewed the earlier work and latest developments have been described by HOLLAENDER, BAKER and ANDERSON (1951), HOLLAENDER (1952) and GILES (1952). One group of investigators has been concerned with the question as ...
متن کاملIsolation of VLs from Unfertilized Eggs
The vitelline layers (VLs) of unfertilized sea urchin eggs were isolated by homogenization in a hypotonic medium containing Triton X-100 and EDTA. The surface topography of the VL is not changed by isolation. The thickness of the isolated VLs (300-400/~) is greater than that reported for VLs on intact eggs (100-200 .~). Sperm adhere to the isolated VLs. When both internal and external VL surfac...
متن کاملGene dosage relations for haploids and diploids of Habrobracon.
ENE action has often been studied by investigating gene dosage relaG tions. This has been done by the addition of chromosome fragments or of entire chromosomes to different genetic backgrounds, exemplified by the work of SCHULTZ (1935) for the gene shaven in Drosophila and of BLAKESLEE (1930) in Datura. STERN and HEIDENTHAL (1944) have shown by their work on position alleles in Drosophila that ...
متن کاملCytasters induced within unfertilized sea-urchin eggs.
Conditions that induce the formation of asters in unfertilized sea-urchin eggs have been investigated. Monasters were formed by treatment of eggs with acidic or basic sea-water, or procaine- or thymol-containing sea-water. A second treatment step, incubation with D2O-containing, ethanol-containing or hypertonic sea-water induced multiple cytasters. The number and size of cytasters varied accord...
متن کاملTHE PROTEIN-SYNTHETIC LESION IN UNFERTILIZED EGGS* BY LARY STAVYt
Control of protein synthesis immediately following fertilization in the sea urchin egg is at the level of translation.1' 2 This system may serve as a useful model for translation-level control in other cells. Fertilization evokes a pattern of increase in the rate of protein synthesis which is independent of the synthesis of new RNA. 3 This fact was interpreted as evidence for the presence in un...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Biological Bulletin
سال: 1938
ISSN: 0006-3185,1939-8697
DOI: 10.2307/1537758