A researcher is evaluating the role of a growth factor during embryonic development. She notices that this factor functions in both neural development and limb development. How is that possible

All of these are possible explanation

The effects of the growth factor may be concentration-dependent

- The effects of the growth factor may be dependent on location

- The growth factor may result in the transcription of different genes depending on cell type

- The growth factor may be signaling through different transduction pathways