Our apparent inconsistency between predicted aversion to the white, and subsequent exploratory behavior in the novel tank may also support at dissociation between the mechanisms of black/white preference and novel tank diving behavior [43].
Recent work by several groups has examined the organization of directional tuning in barrel cortex (BC) and its afferents [8] [12] and elucidated mechanisms of directional preference in cortical neurons, showing how synaptic responses vary systematically as a function of the direction of whisker deflection [13] [15].
In fact, in either case it would be parsimonious to assume that the underlying mechanisms are similar, and thus that the chick may provide a good animal model system for studying underlying mechanisms of face preferences.
Instead, our work provides empirical observations that are consistent with recent models of stabilizing selection causing codon usage bias and support a mechanism for preference of GC-ending codons in an AT-rich mutational background.
However, crystal structures of pol ι show that an incoming dGTP and templating dT form neither a wobble nor a Hoogsteen base pair, and the molecular mechanism of the preference of dGTP misincorporation over correct dATP incorporation remains unclear.
In this study, we have probed the mechanisms of MscS anionic preference and desensitization by examining mutations placed within and around the pore-lining helix TM3.
In those cases, a more complex framework specifies beliefs about the likelihood of possible states of the world, preferences over the consequences of choices in those worlds, and an aggregation mechanism of these preferences under those beliefs.
These two mechanisms of endogenous transmission of preferences give raise to strong fluctuations of wealth across generations and, thus, to reversals of fortune within a family.
For a systematic survey and classification of preference handling mechanisms in NML the interested reader is referred to Delgrande et al. (2004).
Despite the different mechanisms of dosage compensation, the preference for targeting active genes seems to be shared by all three species.
