chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 30736903 30736904 C A 3 GENIC homozygous 109374493 20 30736906 30736907 C T 3 GENIC homozygous 109374495 20 30739077 30739078 C T 2 GENIC homozygous 109374497 20 30766965 30766966 A C 16 GENIC homozygous 109163289