An Appeals Court Judge is a Federal Judge which means they have to be nominated by the President and approved by the Senate. The requirements to be nominated however, are not very stringent.
A nominee for instance, does not even have to hold a law degree talk more of having been a practicing attorney. Although informal criteria exists, they do not revolve around an individual having been a practicing attorney so this statement is false.
The number of repeats within an STR is referred to as an allele. For instance, the STR known as D7S820, found on chromosome 7, contains between 5 and 16 repeats of GATA. Therefore, there are 12 different alleles possible for the D7S820 STR.