Vespolina Vespolina Vespolina is a red Italian wine grape variety that is planted in Piedmont around Gattinara and Ghemme. Ampelographer believe that the grape is most likely indigenous to this area of Piedmont and recent DNA profiling identified a parent-offspring relationship with Nebbiolo. Outside Piedmont it is found in the Lombardy region of Oltrepò Pavese where the grape is known as Ughetta. In Gattinara, Vespolina is sometimes blended with Nebbiolo and Bonarda Piemontese. Unlike the white Italian grape Vespaiolo, the root of the name Vespolina does not have a direct connection with "vespe" or wasp. However the true origins of the
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