Do siblings share the same Haplogroup?

Question:My sister took a DNA test that tested her mtDNA. She belongs to Haplogroup U. I want to take a Y-DNA and mtDNA test in the future. Will my mtDNA be in the same Haplogroup?

Best Answer - Chosen by Asker: My sister took a DNA test that tested her mtDNA. She belongs to Haplogroup U. I want to take a Y-DNA and mtDNA test in the future. Will my mtDNA be in the same Haplogroup?

If you both have the same mother, then your mtDNA will be the same.

yes