Mutations in Einkorn Wheat Induced by X-rays. I.
نویسندگان
چکیده
منابع مشابه
Are "Progressive" Mutations Produced by X-Rays?
PAGE 495 1. The physical background of the problem. .................................... 11. Evidence concerning the duality of the X-ray effect on chro 111. A partial separation of the Werent genetic effects of X-rays.. . . . . . . . . . . IV. The production of multiple allelomorphs.. ..... ........................... 507 V. An induced mutation visibly d8erent from a known lass of VI. First at...
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In previous communications it has been shown (a) that the normal chick embryo lacks the ability to destroy heteroplastic tissue grafts ;l (b) that this lack of resistance disappears between the 19th and 21st days of incubation, and it is significant that the spleen develops at about this time;2 (c) that the lack of resistance, seen during the early days of the incubation period, is replaced by ...
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REVIOUS studies showed that exposure of spermatozoa of Drosophila P melanogaster to near infrared radiation before treatment with X-rays effected a marked increase in the frequency of viable types of chromosomal rearrangement as compared with the frequency in controls receiving only the X-rays. On the other hand, exposure of males to near infrared radiation after treatment with X-rays did not s...
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متن کاملLocal Resistance to Spontaneous Mouse Cancer Induced by X-rays
Autografts from spontaneous cancers of mice when replanted into areas previously exposed to an erythema dose of x-rays, failed to grow in the majority of instances (71.4 per cent), while similar grafts inoculated into untreated areas grew in a large proportion of the animals (83.6 per cent). Autografts of spontaneous cancer, established and growing in the skin, disappeared in 76 per cent of ani...
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ژورنال
عنوان ژورنال: Proceedings of the Japan Academy
سال: 1955
ISSN: 0021-4280
DOI: 10.2183/pjab1945.31.88