Sentence examples for different levels of constraint from inspiring English sources
Different types of genes appear to be evolving under different levels of constraint.
It has been previously shown that mRNA expression is subjected to different levels of constraint in different tissues (Khaitovich et al. 2005, 2006).
However, the genes expressed at different stages of embryonic development appear to be subject to different levels of constraint (reviewed in Kalinka and Tomancak 2012).
To investigate this, we simulated sequence evolution under different levels of constraint at 4-fold degenerate sites and applied a standard maximum likelihood test of positive selection (PAML, branch-site model).
We considered three different levels of constraint from intron splicing on donor and acceptor sites: no constraint; canonical eukaryotic, which held the first and last two bases of the introns fixed; and ciliate, which held the first five and the last three bases of the introns fixed.
Sensor localization is an area of active research in both the radio [20 24] and underwater domains [25 29], where various solutions based on different levels of constraints and assumptions on infrastructure availability have been studied.
Therefore, high substitution or evolutionary rates for a given gene were common across the entire phylogeny and the differences in evolutionary rate between genes were most likely a result of different levels of selective constraint amongst genes rather than species.
This study examined the relationship between the capital structure of diversified companies and their diversification degree in different levels of financing constraint.
Thus, different genes have accumulated different numbers of amino acid changing mutations, which may be due to different levels of selective constraint.
