circular auto sex NCBI UCSC dbSNP Ensembl F T F 1 chr1 ch1 1 F T F 2 chr2 ch2 2 F T F 3 chr3 ch3 3 F T F 4 chr4 ch4 4 F T F 5 chr5 ch5 5 F T F 6 chr6 ch6 6 F T F 7 chr7 ch7 7 F T F 8 chr8 ch8 8 F T F 9 chr9 ch9 9 F T F 10 chr10 ch10 10 F T F 11 chr11 ch11 11 F T F 12 chr12 ch12 12 F T F 13 chr13 ch13 13 F T F 14 chr14 ch14 14 F T F 15 chr15 ch15 15 F T F 16 chr16 ch16 16 F T F 17 chr17 ch17 17 F T F 18 chr18 ch18 18 F T F 19 chr19 ch19 19 F T F 20 chr20 ch20 20 F T F 21 chr21 ch21 21 F T F 22 chr22 ch22 22 F F T X chrX chX X F F T Y chrY chY Y T F F MT chrM chMT MT