Given a scientific passage and an answer, generate a question for the given answer.

Example Input: Passage: New mitochondria and chloroplasts are produced through a process similar to binary fission . Bacteria also reproduce through binary fission. Answer: binary fission
Example Output: How do bacteria reproduce?

Example Input: Passage: During meiosis, homologous chromosomes separate and go to different gametes. Thus, the two alleles for each gene also go to different gametes. At the same time, different chromosomes assort independently. As a result, alleles for different genes assort independently as well. In these ways, alleles are shuffled and recombined in each parent's gametes. Answer: during meiosis
Example Output: When do homologous chromosomes separate and go to different gametes?

Example Input: Passage: Testosterone is the main sex hormone in males. Hormones are chemicals that control many body processes. Testosterone has two major roles:. Answer: testosterone
Example Output:
What is the main sex hormone in males called?