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K. L. Satya Prakash N. V. Aswathanarayana 《Cellular and molecular life sciences : CMLS》1972,28(12):1504-1505
Résumé Contribution à l'étude du polymorphism chromosomique chez le rat noirRattus rattus L.
We are grateful to Prof.M. R. Rajasekarasetty for helpful suggestions and one of us (KLSP) to the University Grants Commission, New Delhi, India, for awarding a Research scholarship. 相似文献
We are grateful to Prof.M. R. Rajasekarasetty for helpful suggestions and one of us (KLSP) to the University Grants Commission, New Delhi, India, for awarding a Research scholarship. 相似文献
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P. V. Subba Rao A. Mangala B. S. Subba Rao K. M. Prakash 《Cellular and molecular life sciences : CMLS》1977,33(10):1387-1388
Summary Studies on 300 persons subjected by occupational hazard to the allergenic weed, Parthenium hysterophorus L. for periods ranging from 3 to 12 months revealed that 4% of them developed contact dermatitis of the exposed parts of the body, while 56% of them got sensitized to the weed without apparently exhibiting any dermatitis. None of them suffered from allergic manifestations like rhinitis or bronchial asthma during the period of study which extended for 2 years.Acknowledgments. We thank Dr Satish Dhawan and Mrs Nalini Dhawan for their keen interest. The help and cooperation of Bangalore City Corporation authorities and their workers is gratefully acknowledged. The work is supported by a special grant from the Indian Institute of Science. 相似文献
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Maintenance of ploidy in sexually reproducing organisms requires a specialized form of cell division called meiosis that generates genetically diverse haploid gametes from diploid germ cells. Meiotic cells halve their ploidy by undergoing two rounds of nuclear division (meiosis I and II) after a single round of DNA replication. Research in Saccharomyces cerevisiae (budding yeast) has shown that four major deviations from the mitotic cell cycle during meiosis are essential for halving ploidy. The deviations are (1) formation of a link between homologous chromosomes by crossover, (2) monopolar attachment of sister kinetochores during meiosis I, (3) protection of centromeric cohesion during meiosis I, and (4) suppression of DNA replication following exit from meiosis I. In this review we present the current understanding of the above four processes in budding yeast and examine the possible conservation of molecular mechanisms from yeast to humans. 相似文献
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Integrated genomic approaches implicate osteoglycin (Ogn) in the regulation of left ventricular mass
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Sister chromatid cohesion, which is essential for mitosis, is mediated by a multi-subunit protein complex called cohesin. Cohesin's Scc1, Smc1 and Smc3 subunits form a tripartite ring structure, and it has been proposed that cohesin holds sister DNA molecules together by trapping them inside its ring. To test this, we used site-specific crosslinking to create chemical connections at the three interfaces between the three constituent polypeptides of the ring, thereby creating covalently closed cohesin rings. As predicted by the ring entrapment model, this procedure produced dimeric DNA-cohesin structures that are resistant to protein denaturation. We conclude that cohesin rings concatenate individual sister minichromosome DNA molecules. 相似文献
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Zidong An João Tovar Jalles Prakash Loungani Ricardo M. Sousa 《Journal of forecasting》2018,37(6):650-665
We used a panel of 29 advanced and emerging market countries to investigate whether the IMF's World Economic Outlook (WEO) fiscal forecasts add value in terms of forecast accuracy and information content, relative to private sector forecasts (from Consensus Economics). We find that: (i) WEO forecasts are not significantly less accurate than Consensus forecasts; (ii) WEO and Consensus forecasts tend to mutually encompass one another; and (iii) each source of forecasts appears to contain some information that is not embedded in the other source. 相似文献
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B. D. Singh Ravi Prakash Singh R. B. Singh 《Cellular and molecular life sciences : CMLS》1981,37(4):363-364
Summary 2 tall and 7 dwarf strains of rice were sprayed with 0 or 40 g ml–1 GA3, 4 dwarf strains responded to exogenous GA3, and showed a markedly lower endogenous gibberellin content than the tall strains, while 2 dwarf strains did not respond to GA3 application and had considerably higher endogenous gibberellin levels than the tall ones. Amylase activity in germinating seeds showed a significant negative correlation with the endogenous gibberellin content. 相似文献
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A O Prakash 《Experientia》1979,35(8):1122-1123
Ethanolic extracts (50%), as well the benzene extracts, of H. rosa-sinensis Linn. have reduced significantly the glycogen contents in the uterus of adult rat. Both the extracts exhibit a clear-cut dose-response relation. The inhibition in glycogen contents increases as the dose is increased. Of the 2, benzene extract seems to be more potent. The results are due to antiestrogenic nature of the extracts. 相似文献