Can a green grape grow on red bunch?

* Genetics: The color of a grape is determined by its genetic makeup. Red grapes have the genes to produce red pigments (anthocyanins), while green grapes lack these genes.

* Varietal Differences: Grape varieties are developed specifically for their color. A red grape variety will consistently produce red grapes, and a green grape variety will consistently produce green grapes.

* Mutations: While extremely rare, genetic mutations could theoretically lead to a single green grape appearing on a red bunch. However, this would be an exceptional and isolated occurrence.

In conclusion, it's much more likely that you're seeing a mix of different grape varieties in a single bunch. It's possible that a different vine (perhaps a green grape variety) is growing close enough to the red grape vine to create the appearance of a mixed bunch.