Sentence examples for before mutation from inspiring English sources
In this model, the initial population of Y chromosomes included genomes with single-copy genes only, experiencing, as before, mutation and selection against deleterious mutations but no gene conversion.
The present series confirmed the established findings that Fo is lower in boys than in girls, even before mutation, and decreases with age; two other classical voice analysis parameters, jitter and shimmer, also showed the same behavior as described in the literature.
It aimed to investigate possible changes of the normal voice in children before mutation, to create a database for the parameters used in the study, and to examine the use of fractal dimension and the largest Lyapunov exponent (LLE) in the assessment of nonpathological phenomena.
As demonstrated before, mutation of both tyrosines completely abolished Itch binding (Figure 4D).
We assume that mRNA abundance fi(t) is affected by mutations with proportionality to the abundance before mutation.
In 18 evaluable patients in which both LOH and mutation were found, we found independent LOH and mutation events in 6 patients, LOH occurred before mutation in 8 patients and mutation before LOH in 4 patients, suggesting that when mutation and LOH both happen, there is no preferential order.
Finally, as our results show, G can change within a few generations, before mutations or potential selection could have affected it.
The researchers focused on an assumption made by the models called the "error threshold," which predicts how big a genome can become before mutations warp its shape and render it useless.
Consequently, the optimal mutation rate at the stationary state does not necessarely coincide with the optimal mutation rate before mutation-selection equilibrium is reached.
As we have seen before, mutations leading to recessive characters are much more frequent than dominant ones.
In particular, as illustrated before, mutations in CYP1B1, LTBP2, and MYOC have been found to be causative of PCG among different worldwide populations [ 25].
