Which of the following codes describes position 12 on the long arm of chromosome 13?

13p12

13q12

12p13

12q13

13q12

Explanation:

In cytogenetics, the notation used follows a series of rules.

When you read that something happened, for example a translocation, in the position 13q12, this means that it is in the chromosome 13, in the long arm (q), band 1 and sub band 2.