However, having slender bones is a morphological solution, which could be favoured by natural selection for different purposes such as the active pursuit of prey (e.g., the cheetah), long-distance pursuit (e.g., wolves), or long-distance foraging (e.g., foxes).
With this base system, various degradable peptide crosslinks derived from ECM proteins (e.g., GPQG↓IWGQ or IPVS↓LRSG derived from collagen I) can be incorporated within the gels to allow cell-controlled matrix degradation, where the degradation rate of the matrix can be tuned by peptide selection for different applications.
In R. philippinensis assortative mating has evolved between size morphs as a by-product of selection for different frequencies used to exploit different prey sizes [ 70].
Further studies to determine the biological mechanism by which there is selection for different codon 72 alleles by alcohol drinking are thus desirable.
Currently, the facilities offered by computers greatly help this task; we can, so much more quickly, use various combinations of weighting the different traits, construct indices and estimate the responses to selection for different traits.
Also, the patient selection for different treatments was biased.
Thus, sperm competition by males may benefit the female via two different mechanisms: first, by cryptic selection for high quality males and second, by selection for highest quality sperm within each ejaculate.
Many phylogenetic hypotheses completely ignore selection and treat all DNA sequences as neutral, although they implicitly consider the effects of selection by allowing for different rates at which new mutations are substituted along lines of descent.
In Section 2.2, we introduced a new measure to increase the effectiveness of random user selection by fixing the selection for each different online user set.
Nowadays, a small number of breeds dominate pig production worldwide, i.e. Large White, Landrace, Duroc and Pietrain which have distinct phenotypes generated by selection applied with different intensities for desired production attributes.
