Willcox, Arizona Border Patrol, and Safeway. NatureSweet has a greenhouse outside town. The Willcox wine region produces 74% of the wine grapes grown in the state of Arizona. Grape varietals grown include Petite Sirah, Malvasia Bianca, Sangiovese, Chenin blanc, Syrah, Colombard, Sauvignon blanc, Corvina, Merlot, Malbec, Tannat, Cabernet Franc, Chardonnay, Tempranillo, Cabernet Sauvignon and Mourvèdre. As of the census of 2000, there were 3,733 people, 1,383 households, and 947 families residing in the city. The population density was 622.3 people per square mile (240.2/km²). There were 1,652 housing units at an average density of 275.4 per square mile (106.3/km²). The racial makeup
Petite mutation petite negative mutants. Potentially, these yeasts have a different inheritance system in place for their mitchondrial genome than "S. cerevisiae" does. The frequency at which "S. castellii" spontaneously produces petites is similar to that of "S. cerevisiae", with the mitochondrial DNA of those petites being highly altered via deletion and rearrangement. Suppressive petites of "S. cerevisiae" are the most commonly observed spontaneously created mutants, whereas in "S. castellii," the most commonly observed spontaneous mutant is the neutral petite, further leading to speculation that the transference of this mutation differs between species. Petite mutation petite (ρ–) is a mutant first discovered