The y chromosome is the most well-known genetic marker identifying those who are most likely to

It identifies those who are most likely to have [complete] androgen insensitivity syndrome. This causes the person to be identified as female, even if they are a male without the Y chromosome. People who have this condition lack androgen. Androgen is basically a male sex hormone, just like testosterone. 

I hope I helped :)

Pro insulin undergoes extensive posttranslational modification along the production pathway .