نتایج جستجو برای: patterns of variation
تعداد نتایج: 21210908 فیلتر نتایج به سال:
Nuclear simple sequence repeats (nSSRs), together with 16 different enzyme loci, were used to analyzegenetic diversity and differentiation among beech (Fagus orientalis Lipsky) populations along two altitudinalgradients in Hyrcanian forests of Iran. Both enzymes and nSSR analyses revealed a high level ofgenetic diversity in natural populations of F. orientalis. The genetic div...
Received: 3 Oct, 2012 Accepted: 21 Des, 2012 Background & Aims : Identification of genotypic variation of Echinococcus granulosus strains is important for epidemiology and control of the larval stage of this parasite. The present study was undertaken in order to identify E. granulosus strains in West Azerbaijan province , Iran . Materials & Methods : Organs infected with hydatid cysts f...
high molecular weight (hmw) glutenin sub-units and baking quality related traits were studied in 49 iranian wheat landraces. the protein content ranged from 11.2% to 13.55%, and sds sedimentation volume varied between 40 and 60 milliliters. high molecular weight glutenin electrophoresis profiles revealed that at the glu-a1 locus, the frequency of null allele was higher than sub-units 1 and 2*. ...
although there are studies on pragmatic assessment, to date, literature has been almost silent about native and non-native english raters’ criteria for the assessment of efl learners’ pragmatic performance. focusing on this topic, this study pursued four purposes. the first one was to find criteria for rating the speech acts of apology and refusal in l2 by native and non-native english teachers...
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