Answer: One will find a gene named Xq97 on region 97 of long arm of X chromosome.
Explanation: When describing chromosomal address, long arm of chromosome is denoted by q while short arm of chromosome is denoted by p.
Where point (.) is used, the numbers after the point indicate the band number.
For example, one will find a gene named 10p2.21 on band 21, region 2 of short arm of chromosome 10.
That is;
10 = chromosome number
p = short arm of the chromosome
2 = region on the short arm
.21 = band in the region
Check attached image for better understanding.