I have sent my sample for dna sequencing, now need to compare my mutated sequence with my data base sequence. so the question os which one is query and which one is subject sequence?
The one that you have submitted for homology search is the Query seq, and the one with which it matches is the Subject. So Subject is the GenBank sequence, Query is your sequence.
As Sibnarayan Datta said, the query is your sequence and is always on the first level, the second is the sequence matching between the query and database and on the third level is the database sequence.