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I am using unified genotyper utility of GATK.
I don't exactly know how I should make the dbsnp file necessary. I thank you very much for any help.
I'm sorry, I don't understand your question. The dbsnp file is not required by the UnifiedGenotyper but it can be used if you want. Are you trying to use it and it's not working? Or is your problem something else?
Geraldine Van der Auwera, PhD