Growing a whole plant from a single cell. Finding the sequences of bases in plant DNA. Inserting a gene into plants that makes them resistant to insects. Attaching the root of one type of plant to the stem of another type of plant.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which of the following is an example of genetic engineering?
Possibilities:
- Growing a whole plant from a single cell.
- Finding the sequences of bases in plant DNA.
- Inserting a gene into plants that makes them resistant to insects.
- Attaching the root of one type of plant to the stem of another type of plant.

Inserting a gene into plants that makes them resistant to insects.