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

Ex Input:
The double helix dna shape forms when the two nucleotide chains wrap around the same axis.

Ex Output:
What distinctive dna shape forms when the two nucleotide chains wrap around the same axis?

Ex Input:
Bacteria may divide several times an hour.

Ex Output:
Bacteria may divide several what an hour?

Ex Input:
Reversed polarity is it called when poles are in opposite positions.

Ex Output:
What is it called when poles are in opposite positions?