INDUCTION OF DOMINANT LETHAL EFFECTS BY X-RADIATION IN HABROBRACON
نویسندگان
چکیده
منابع مشابه
Induction of Dominant Lethal Effects by X-Radiation in Habrobracon.
ULLER in 1927 stated that the “partial sterility” of X-rayed males M of Drosophila wasdue,at least to an appreciable extent, to dominant lethal changes induced in the sperm. It was impossible, however, to determine whether the eggs were actually “fertilized.” In Drosophila the result would be the same; the eggs would fail to develop, whether dominant lethals were induced or the sperm were inact...
متن کاملThe Effects of X-Radiation of Larvae in Habrobracon.
ACKNOWLEDGMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DISCUSSION . . . . . . . . . . . . . . . . . . . . . . . ....
متن کاملThe Occurrence of X-Ray Induced Dominant Lethal Mutations in Habrobracon.
H E PARASITIC wasp, Habrobracon, has been considered of special T value in connection with studies of dominant lethals because of its somewhat exceptional method of breeding. In “out-crosses,” now called three-allele crosses because they involve triple alleles a t the sex locus, all fertilized eggs develop into females, unfertilized ones into males (WHITING 1937a, 1940, 1943). It follows, then,...
متن کاملDominant Lethal and Inactivation Effects of Nitrogen Mustard on Habrobracon Sperm.
S early as 1911 0. HERTWIC demonstrated two types of behavior of irA radiated Amphibian sperm. One of these, the dominant lethal effect, resulted in death of embryos due to fusion of injured sperm nucleus with egg nucleus. The other, inactivation of sperm, stimulated the egg to develop gynogenetically since injured sperm entered it but took no part in development. PACKARD (1914) observed, in ad...
متن کاملTemperature effects on lethal mutation rates of Habrobracon oocytes x-irradiated in first meiotic metaphase.
BRIEF note was published in 1940 (WHITING) concerning the influence of A temperature on X-ray sensitivity of different meiotic stages in the Habrobracon oocyte. Unmated females were kept at O"C, 13"C, 25"C, and 35OC for one hour before and one hour after irradiation. During a one half minute of exposure to 212r, they were at room temperature. For oocytes in first meiotic metaphase (metaphase I)...
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ژورنال
عنوان ژورنال: Genetics
سال: 1937
ISSN: 1943-2631
DOI: 10.1093/genetics/22.4.452