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

Example Input: In prokaryotes, a(n) genome is composed of a single, double-stranded dna molecule in the form of a loop or circle.
Example Output: In prokaryotes, what is composed of a single, double-stranded dna molecule in the form of a loop or circle?

Example Input: Ultrasound, a diagnostic technology, uses high-frequency vibrations transmitted into any tissue in contact with the transducer.
Example Output: What diagnostic technology uses high-frequency vibrations transmitted into any tissue in contact with the transducer?

Example Input: The relationship between a nucleotide codon and its corresponding amino acid is called genetic code.
Example Output:
The relationship between a nucleotide codon and its corresponding amino acid is called what?