Effect of anthelmintics upon host organism

The Effect of Rickettsial Parasitism upon Host Nucleic Acid Metabolism

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Directed evolution: selection of the host organism

Directed evolution has become a well-established tool for improving proteins and biological systems. A critical aspect of directed evolution is the selection of a suitable host organism for achieving functional expression of the target gene. To date, most directed evolution studies have used either Escherichia coli or Saccharomyces cerevisiae as a host; however, other bacterial and yeast specie...

Expression of Non-Native Genes in a Surrogate Host Organism

effect of oral presentation on development of l2 learners grammar

this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...

Effect of chloridazone on the animal organism.

The acute toxic effect of the herbicide chloridazone and mitochondrial respiration were investigated and typical clinical signs of intoxication were described in rats (Wistar), pheasants (Phasianus colchicus) and sheep (Slovak Merino). The LD50 of chloridazone was calculated to be for rats 800 mg/kg bw (range 552 to 1160 mg/kg bw) and for pheasants 3684 mg/kg bw (range 1768 to 7677 mg/kg bw). A...