Why do I see the following genotypes and AD:
I understand that sample 196_A51_H3 is a heterozygote, and the AD for the REF allele is 15 and for the ALT allele is 2. I think that the WT sample is homozygote for the REF allele, still the genotype is 0/1 and the AD for the REF allele is 20 and 0 for the ALT allele.
Can you please tell me if I have made an error in my interpretation or why the WT genotype is written as 0/1?
GATK version was GATK 4.3.
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