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

Example Input: Passage: A cross section of earthquake epicenters. The depth outlines the subducting plate. There are shallow, intermediate, and deep earthquakes. Answer: earthquake
Example Output: Subducting plate and epicenter are terms related to what phenomenon?

Example Input: Passage: The cell membrane is made up of a phospholipid bilayer, two layers of phospholipid molecules. Notice the polar head group of the phospholipid is attached to the phosphate, and the tails are two fatty acid chains. The head group and tails are attached by a glycerol backbone. Answer: cell membrane
Example Output: What basic cell structure is made up of a phospholipid bilayer and two layers of phospholipid molecules?

Example Input: Passage: Most human traits have more complex modes of inheritance than simple Mendelian inheritance. For example, the traits may be controlled by multiple alleles or multiple genes. Answer: mendelian
Example Output:
What type of simple inheritance is too simplified to explain most human traits?