chr start stop reference nuc variant nuc depth genic status zygosity variant ID 12 4534757 4534758 G A 78 GENIC homozygous 50004246 12 4537282 4537284 GT -- 1 GENIC homozygous 50004249 12 4538962 4538964 CC -- 4 GENIC heterozygous 50274644 12 4538963 4538964 C - 4 GENIC heterozygous 50004251