Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[Q]: Induced or spontaneous are the two methods in which mutations arise in dna.
[A]: What are the two methods in which mutations arise in dna?


[Q]: Starches are complex carbohydrates that are the polymers of glucose.
[A]: What complex carbohydrates are the polymers of glucose?


[Q]: If two populations do not mate and produce fertile offspring, separate species result.
[A]:
If two populations do not mate and produce fertile offspring, what results?