Spanish wine person a year. The country has an abundance of native grape varieties, with over 400 varieties planted throughout Spain though 80 percent of the country's wine production is from only 20 grapes—including the reds Tempranillo, Garnacha, and Monastrell; the whites Albariño from Galicia, Palomino, Airen, and Macabeo; and the three cava grapes Parellada, Xarel·lo, and Macabeo. Major Spanish wine regions include the Rioja and Ribera del Duero, which are known for their Tempranillo production; Valdepeñas, drunk by Unamuno and Hemingway, known for high quality tempranillo at low prices; Jerez de la Frontera, the home of the fortified wine Sherry; Rías
Petite mutation and exhibit Mendelian 1:1 segregation. Neutral petites (rho–N): Neutral petite when crossed to wild-type, all offspring are wild-type. It has inherited normal mitochondrial DNA from wild-type parent, which is replicated in the offspring. Suppressive petites (rho–S): crosses between petite and wild-type, all offspring are petite, showing "dominant" behavior to suppress wild-type mitochondrial function. Most petite mutants of "S. cerevisiae" are of a suppressive type, and they differ from neutral petite by affecting the wild-type, although both are a mutation in mitochondrial DNA. Mitochondrial genome of yeast will be the first eukaryotic genome to be understood in terms of both structure