Molecular Biology/Genetics USMLE Step 1 Practice Question
Police are investigating the case of a missing mother of 4 children. All 4 children have the same biological father. Single-locus short tandem repeat (STR) analysis was performed on DNA from the 4 children and the father. During the analysis, the label corresponding to the father's sample was displaced. The lanes are numbered 1-5. The letters A-D correspond to the different alleles of the analyzed STR. Given these results, which of the following STR alleles most likely correspond to those of the missing mother?
Answer choices
- AB and D
- BA and C
- CA and DCorrect answer
- DA and B
- EB and C
- FC and D
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