An improved method for extraction of plant DNA is described. Quantitative species comparisons based on DNA-DNA hybridization are reported for several members of the family Leguminosae and for barley, wheat and rye. A maximum of about 10% homology in DNA polynucleotide sequences is found between monocotyledons and dicotyledons tested, whereas 20 to 90% homology is observed within a family. Speci...

A simple and efficient method for in vitro mutagenesis and recombination of polynucleotide sequences is reported. The method involves priming template polynucleotide(s) with random-sequence primers and extending to generate a pool of short DNA fragments which contain a controllable level of point mutations. The fragments are reassembled during cycles of denaturation, annealing and further enzym...

We have found that aggregation mode and gelation property of thymidine-based organogelator are affected by the addition of its complementary polynucleotide in organic media.

In this paper we consider the incipient formation of internal dynamics a uniformly moving polaron in polynucleotide chain subjected to constant electric field. The calculations performed show that Bloch oscillations arising course oscillatory motion along do not completely disappear when polaron's becomes uniform. When moves chain, are also observed, although slightly different form. It is show...

well-defined crystalline pbse nanocubes and nanospheres have been synthesized through a simple hydrothermal method by using pb2+- edta and pb2+- oleylamine complexes at 180°c for different reaction times. composition and morphology of the samples have been characterized by means of xrd and sem. gradual release process of pb2+ from pb2+-edta and pb2+-oleylamine complexes can adjust the growth ra...

in this research, a sol gel autocaombustion route has been proposedto synthesize alumina-zirconia composite powders, usingammonium bicarbonate as a new fuel. then the effect of calcinationtemperature on phase transformation and crystallite sizes wasinvestigated. to characterize the products xrd, tem and betanalyses were used. xrd patterns of as-synthesized powder andcalcined powders at 1100 ◦c ...