Which of the following are TRUE statements about plastids (e.g., chloroplasts)? (Mark all the correct answers) The plastid genome is typically smaller than that of the smallest chromosome. In most flowering plants, plastids pass from one generation to the next via the sperm cells of the pollen. If one isolates plastids from its host cell, they can grow and divide if they have air, water, light, and minerals. Genes in the nucleus control the expression of many plastid genes..