Fig. 4From: Breakpoints and deleted genes identification of ring chromosome 18 in a Chinese girl by whole-genome low-coverage sequencing: a case report studyThe Copy Number Ratio of Chromosome 18. The blue line indicates the normal diploid copy number ratio, and the window size is 5Â kb. Both ends of chromosome 18 has a partial deletion, the copy number ratio is 0.5 showed heterozygous terminal deficiency. Centromere starts from 150Kb to 180KbBack to article page