ColE1 plasmid incompatibility: localization and analysis of mutations affecting incompatibility
نویسندگان
چکیده
منابع مشابه
Plasmid incompatibility.
A bacterial plasmid is a species of nonessential extrachromosomal deoxyribonucleic acid (DNA) that replicates autonomously as a stable component of the cell's genome. Naturally occurring plasmids range in size from one to several hundred kilobases and in copy number from one to several hundred per cell. Copy number is a fixed characteristic of any plasmid under constant conditions and is contro...
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اهداف اولیه این بررسی آزمایش، شناسائی ارتباط روانی - اجتماعی مادر، با انتظارات غیرواقعی از کودک، توان بالقوه تنبیه بی مورد او و بررسی ارتباط این عوامل با رفتار کودک بود. جهت تحقیق، از روش مقطعی در دو گروه استفاده شد. یک گروه شامل بیست مادر با درآمد کم بود که کودکان پیش دبستانی آنها به دلیل تنبیهات بدنی و غفلت والدین بالاخص مادر، به یک موسسه مراقبتهای خانوادگی ارجاع داده شده بودند.
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1979
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.139.2.608-619.1979