Chiasma distribution at diplotene in a locust
نویسندگان
چکیده
منابع مشابه
Chiasma F'requency and Distribution in a Maize Family Segregating for Kio and Trisomy
Chiasma frequency was determined from total chiasma counts, and the distribution of these exchanges was determined by the ratio of proximal to distal chiasmata. No effect of trisomy IO could be demonstrated. Confirmation was obtained of earlier work showing more proximal and fewer distal chiasmata in K10 plants than in controls. However, diakinesis data failed to confirm the ability of KIO to i...
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Chiasma counting has been regarded as the most straightforward method of scoring the total number of crossing-over events in the genome. In organisms in which genetic analysis is difficult or impossible to perform, it is a good estimator of the level of genetic recombination. In this paper we evaluated the chiasma frequency and distribution at diakinesis of twelve Brazilian oat varieties (Avena...
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Thirty patients with chiasma syndrome attributed to ischemic processes of various origins are described. The initial diagnosis was made after an investigation based on polytome pneumoencephalography and angiography. This diagnosis was confirmed later with the use of high-resolution computed tomography (CT) and refined angiographic techniques. The ischemic chiasma syndrome may be classified into...
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چکیده رساله/پایان نامه : تاکنون روشهای متعددی در ارتباط با مکان یابی خطا در شبکه انتقال ارائه شده است. استفاده مستقیم از این روشها در شبکه توزیع به دلایلی همچون وجود انشعابهای متعدد، غیر یکنواختی فیدرها (خطوط کابلی، خطوط هوایی، سطح مقطع متفاوت انشعاب ها و تنه اصلی فیدر)، نامتعادلی (عدم جابجا شدگی خطوط، بارهای تکفاز و سه فاز)، ثابت نبودن بار و اندازه گیری مقادیر ولتاژ و جریان فقط در ابتدای...
Chiasma Distribution and Segregation of Markers in Chromosome 2 of the Tetraploid Tomato.
T H E relation of chromosome behaviour at meiosis to genetic segregation ratios in tetraploids is well established (LITTLE 1945, 1958). In the tetraploid tomato, chromosome 2 is readily identified at meiosis and, owing to the presence of heteromorphic satellites, the mode of pairing of the four homologues can be analyzed. In addition, chromosome 2 has a number of genetic markers which are suite...
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ژورنال
عنوان ژورنال: Heredity
سال: 1963
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.1963.20