Which Italian varietal is genetically identical to Zinfandel?

• A. Primitivo
• B. Nebbiolo
• C. Aglianico
• D. Montepulciano

Answer: (A)

Genetic identity between grape varieties is proven through DNA profiling, which shows that Zinfandel and Primitivo share the exact same genetic makeup. That means they are the same variety expressed in different places and under different names. Primitivo is the Italian grape grown in Puglia, while Zinfandel is its California counterpart; the difference is only in where and how they’re cultivated and vinified, not in their fundamental genetics. The other Italian varieties—Nebbiolo, Aglianico, and Montepulciano—are distinct grapes with different DNA profiles, producing wines with different flavors, tannins, and aging potentials. So Primitivo is the correct answer because it is genetically identical to Zinfandel.