I want to know the answer to the following question:
How many genes were associated with asthma by the end of 2005?
All the background I'm provided with is that "By the end of 2005, 25 genes had been associated with asthma in six or more separate populations, including GSTM1, IL10, CTLA-4, SPINK5, LTC4S, IL4R and ADAM33, among others.". Is that enough to answer the question?