Definition: You will be given a passage, and your task is to generate a Yes/No question that is answerable based on the given passage.
Input: XYY syndrome is a genetic condition in which a male has an extra Y chromosome. Symptoms are usually few. They may include being taller than average, acne, and an increased risk of learning problems. The person is generally otherwise normal, including normal fertility.

is it possible to have an extra y chromosome?