genetic mutation selective breeding genome duplicating sexual recombination
I gave my students this multiple choice question: Morning glories are plants that have a large amount of variation in the genes for flower color. When a white flower appears in a population independent of the trait for white flower color, what is the most likely source?

Only one answer is correct among these 4 choices:
- genetic mutation
- selective breeding
- genome duplicating
- sexual recombination

Could you tell me which one is correct?

genetic mutation