Plants respond to changes in their environment. They detect gravity, light, touch, and seasonal changes, and respond to these stimuli in many ways. Which statement best explains the flexibility in response? 1. Phenotypes are controlled by one gene that codes for multiple regulatory proteins.
2. The genes that regulate plant responses can be expressed in different ways
3. The genes that regulate plant responses can mutate to adjust to environmental changes
4. Phenotypes control the genotypes of individuals, determining plant responses