I am a female. Another female and I have come up as sharing 1915 cM's and when we do the one to one X-DNA on GED Match, if we click on "prevent hard breaks", we have a straight blue line across the bottom, and all yellow and green across the top (primarily green). We also get this info: Largest segment = 190.1 cM Total segments = 190.1 cM (100.052 Pct) 1 shared segments found for this comparison. 19820 SNPs used for this comparison.
Are we correct in concluding that we are half sisters?
We both know who our Mother's are. We share DNA with others on Ancestry and GED Match.