Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: The double helix dna shape forms when the two nucleotide chains wrap around the same axis.

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


Question: All life is built around the element carbon.

Answer: What element is all life built around?


Question: Pyrogens bacteria are destroyed by leukocytes, what are released into the blood.

Answer:
When bacteria are destroyed by leukocytes, what are released into the blood?