Sentence examples for frequency of exchanges from inspiring English sources

Factors affecting a cave population can vary widely (e.g., composition of the cave coenoses, availability of trophic resources, water regime, frequency of exchanges with the surface environment, etc).. Differences in physiology or the presence of preadaptations to cave life must also be considered, along with phenotypic plasticity and epigenetic effects.

The initial discovery of chromosomes was then followed in the 20th century by the mapping of genes on chromosomes based on the frequency of exchange of parts of chromosomes by a process called chromosomal crossing over, an event that occurs as a part of the normal process of recombination and the production of sex cells (gametes) during meiosis.

Discussion: Can some estimates be made about the frequency of exchange in the heteroplasmic cultures?

Although exchange products are rarely observed in inversion heterozygotes, the frequency of heterozygotes forming dictates the frequency of exchange products in the population.

The EUR samples have a low frequency of Exchange 2, compared to the worldwide frequency of Exchange 2, whilst Exchange 1 is absent, or at a very low frequency, in the AFR and ASN samples.> -wrap-foot> The genotype combinations for the four tag SNPs able to identify each of the five DEFA1A3 haplotype classes.

The absence of significant difference in the frequency of exchange transfusion in G6PD normal and deficient infants might be attributed to small sample size of G6PD deficient group.

These probability values represent the average substitution frequency of exchange of two amino acids in a given structural environment seen in the HOMSTRAD database of structurally derived sequence alignments [ 28].

Moreover, a genetic map position reflects the total frequency of exchange between a locus of interest and a reference gene less than 10 cM away (to minimize interference due to double crossover events) and thus requires scoring all viable progeny.

As described previously, the basal rate of t-SCE events in telomerase-positive cells was very low (Londono-Vallejo et al, 2004), in contrast to the high frequency of exchange events detected in VA13 cells.

These sequences may represent conserved regions with few mutation sites or lower frequencies of exchange during chromosome recombination.

However, R-genes vary dramatically in frequency of sequence exchanges.