Sentence examples for polymorphism and the existence of from inspiring English sources

Some factors liable to pulmonary toxicity include advanced age, genetic polymorphism and the existence of prior pulmonary disease.

16S analysis commonly provides a definitive identification, but certain closely related species cannot be differentiated, a consequence of the low level of interspecies polymorphism and the existence of multiple and different copies of 16S in N. nova [11, 2].

Furthermore, our data shows that the substrate-specific effects are more general and are not restricted to the Met420del polymorphism and supports the existence of multiple binding sites that strongly vary among different OCT1 substrates.

They attributed part of this polymorphism to the existence of more than one PherZ allele and another part to a minor modifier locus, the exact nature of which remained elusive.

Further studies based on genome-wide sequencing and high-density SNP (single nucleotide polymorphism) genotyping confirmed the existence of the Celtic and Friesian variants and narrowed down the causal Friesian haplotype to an interval of 145 kb.

In bacteria, regulon polymorphism, that is the existence of a core and an accessory regulon, has been previously studied in different contexts and taxonomic scopes, such as pathogenesis regulation in Clostridium perfringens strains [ 18] and cell cycle control in the alpha-proteobacteria class [ 19], both at the intra-specific and inter-specific levels, respectively.

This polymorphism results in the existence of two different alleles, termed Hp1 and Hp2 [15] that may be explored by DNA genotyping or by plasma gel electrophoresis phenotyping [14].

The whole genome distribution of polymorphisms revealed the existence of islands of homozygosity and heterozygosity.

The low number of genes segregating the group of genital serovars reflects the high heterogeneity within this group as a direct consequence of the recombination background affecting mostly these strains (Harris et al. 2012) and the existence of distinct polymorphism signatures.

The patterns of polymorphism also suggested the existence of structural variation in the plastid genome within C. americanum.

Despite this high rate of polymorphism, the existence of one zonadhesin locus at linkage group 7 is supported by the large tile of overlapping clones at linkage group 7, and the rapidly evolving nature of zonadhesin genes [ 1].