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I have an mtDNA (mtFull Sequence) test result on FamilyTreeDNA that shows Revised Cambridge Reference Sequence that includes CR REFERENCE SEQUENCE that includes Position 9053 with the CRS showing G and my result showing R.

I thought DNA was either A, T, C, or G (Adenine, Thymine, Cytosine and Guanine), so what the heck is R, does that mean a defect in the DNA or the test failed to resolve that value? Would a retest with a new sample fix the issue? Would a new lab test with the old sample fix the issue? Is there any issue?

I see a table of FASTA DNA Codes that says it means A or G.

I have a mtDNA (mtFull Sequence) test result on FamilyTreeDNA that shows Revised Cambridge Reference Sequence (CRS), and at Position 9053 the CRS shows G and my result is R.

I thought DNA was either A, T, C, or G (Adenine, Thymine, Cytosine and Guanine), so what the heck is R? Does it mean a defect in the DNA or the test failed to resolve that value? Would a retest with a new sample fix the issue? Would a new lab test with the old sample fix the issue? Is there any issue?

I see a table of FASTA DNA Codes that says R means either A or G.

I have an mtDNA test result on FamilyTreeDNA that shows Revised Cambridge Reference Sequence that includes CR REFERENCE SEQUENCE that includes Position 9053 with the CRS showing G and my result showing R.

I thought DNA was either A, T, C, or G (Adenine, Thymine, Cytosine and Guanine), so what the heck is R, does that mean a defect in the DNA or the test failed to resolve that value? Would a retest with a new sample fix the issue? Would a new lab test with the old sample fix the issue? Is there any issue?

I see a table of FASTA DNA Codes that says it means A or G.

I have an mtDNA (mtFull Sequence) test result on FamilyTreeDNA that shows Revised Cambridge Reference Sequence that includes CR REFERENCE SEQUENCE that includes Position 9053 with the CRS showing G and my result showing R.

I thought DNA was either A, T, C, or G (Adenine, Thymine, Cytosine and Guanine), so what the heck is R, does that mean a defect in the DNA or the test failed to resolve that value? Would a retest with a new sample fix the issue? Would a new lab test with the old sample fix the issue? Is there any issue?

I see a table of FASTA DNA Codes that says it means A or G.

I have an mtDNA test result on FamilyTreeDNA that shows Revised Cambridge Reference Sequence that includes CR REFERENCE SEQUENCE that includes Position 9053 with the CRS showing G and my result showing R.

I thought DNA was either A, T, C, or G (Adenine, Thymine, Cytosine and Guanine), so what the heck is R, does that mean a defect in the DNA or the test failed to resolve that value? Would a retest with a new sample fix the issue? Would a new lab test with the old sample fix the issue? Is there any issue?

I see a table here that says it means A or G.

I have an mtDNA test result on FamilyTreeDNA that shows Revised Cambridge Reference Sequence that includes CR REFERENCE SEQUENCE that includes Position 9053 with the CRS showing G and my result showing R.

I thought DNA was either A, T, C, or G (Adenine, Thymine, Cytosine and Guanine), so what the heck is R, does that mean a defect in the DNA or the test failed to resolve that value? Would a retest with a new sample fix the issue? Would a new lab test with the old sample fix the issue? Is there any issue?

I see a table of FASTA DNA Codes that says it means A or G.