The noun “clone” refers to plants of the same species that have identical physical characteristics. The DNA of a grapevine is not stagnant, so in Nature, clones change and evolve as the result of natural genetic mutations taking place over hundreds, if not thousands, of years. A grape variety may have many clones (like pinot noir), or relatively few (like sauvignon blanc). Two different clones of the same grape variety may taste remarkably different. Clone is also a verb. In viticulture, “to clone” means to propagate a group of vines from a “mother” vine that has desirable characteristics. These characteristics may include qualities such as resistance to certain diseases, berry size, and/or flavor attributes.