Crops developed by integrating a foreign gene with their own genome to gain desired characters are best described as:

1. The key feature is a foreign gene integrated into the crop's genome. 2. Such crops with engineered traits are called genetically modified crops. 3. Wild varieties and organically grown crops involve no gene insertion, and cold storage is only a preservation method. _Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 8 "Cell Biology and Biotechnology", p.101_