DIFFERENTIAL RESPONSE OF MEIOTIC STAGES IN HABROBRACON EGGS TO NITROGEN MUSTARD
نویسندگان
چکیده
منابع مشابه
Differential Response of Meiotic Stages in Habrobracon Eggs to Nitrogen Mustard.
N some respects, the mutagenic action of the mustards on Drosophila resembles I that of X-rays. Both are nonspecific in their effects (AUERBACH and ROBSON 1946), each induces an approximate five-to-one ratio of recessive lethals to visible deletions (SLYZINSKA and SLYZINSKI 1947), the same stage of spermatogenesis appears to be sensitive to both mutagens (AUERBACH 1953) and breaks are induced a...
متن کاملMutational response of Habrobracon oocytes in metaphase and prophase to ethyl methanesulfonate and nitrogen mustard.
HITING (1945), working on the parasitic wasp Habrobracon, developed a timing method that distinguished oocytes irradiated in the first meiotic metaphase (metaphase I) from those irradiated in the first meiotic prophase (prophase I) . She used embryo lethality of X-irradiated eggs from diploid virgins, which measured mostly dominant lethality, and found that metaphase I oocytes are approximately...
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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 ...
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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 کاملPathways of the eye's response to topical nitrogen mustard
time to the enzyme was 24 hours at a concentration of 8,200 units per milliliter which would provide both an adequate contact time and enzyme concentration for glycosaminoglycan degradation. The quantitative examination of stromal tissue sections for glycosaminoglycans revealed that hyaluronic acid was lost entirely from the stroma and other sulfated compounds were also lost from the tissue. Th...
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ژورنال
عنوان ژورنال: Genetics
سال: 1955
ISSN: 1943-2631
DOI: 10.1093/genetics/40.1.107