We concluded that tissue-specific expression of the appb gene resembling its endogenous pattern required two separate, somewhat distant regulatory domains to cooperate in cis to confer tissue-specificity.
Turing patterns require two conditions.
Our method requires three patterns, but these are off-the-shelf patterns without particular manufacturing requirements.
Making cloth baby shoes requires three pattern pieces, the top, the heel, and the sole.
In standard tuning, playing scales of one octave requires three patterns, which depend on the string of the root note.
Using the described approach for depositing and patterning elastic conductors on nonplanar surfaces requires three separate deposition steps and compatibility considerations.
(It requires three puppeteers).
This requires three interrelated strategies.
Listening requires three things.
Making simple booties only requires two pattern pieces, the upper and the sole.
This pattern requires the repair of two sister chromatids broken at the same position, and we suggested that chromosome breakage in G1 of the cell cycle, followed by DNA replication, would produce such a situation (Lee et al. 2009).
