Page 29 - An Identity Crisis
P. 29

Post-Lab

             Questions









               Short Answer



               1.  Which woman was Louise Mondelo?                7.  Is it easier to prove guilt or innocence using
                                                                    DNA?
                 ...............................................................................
                 ...............................................................................      ...............................................................................
                                                                    ...............................................................................
               2. Could the driver of the car be the mother of
                 the two children in the car?
                                                                  8. Given that there are only 8,300 people in the
                 ...............................................................................    county where Highland Park is located, how
                 ...............................................................................  many people in that county would you expect
                                                                    to find with the same genotype as each of the

               3. Of the known samples, who could have been         unknowns?
                 Jan’s parents? Wally’s?                            ...............................................................................

                 ...............................................................................     ...............................................................................
                 ...............................................................................

                                                                  9. Assuming an STR with 5 alleles (ignoring
               4. Of the known samples, whose DNA could be          the very rare ‘off ladder’ alleles), how many
                 on the firewood?                                   genotypes exist?

                 ...............................................................................
                 ...............................................................................      ...............................................................................
                                                                    ...............................................................................

               5. Of the known samples, whose flesh could
                 have been left on the fireplace?               10. Using the information from #9 above
                 ...............................................................................    and assuming that every STR has
                 ...............................................................................  5 alleles, on average, how many STRs
                                                                    are needed to expect to find only one
                                                                    person of a given genotype in a population
               6. Is it easier to prove that two DNA samples        of 300 million?
                 match or do not match?

                 ...............................................................................        ...............................................................................
                 ...............................................................................   ...............................................................................






                                                                          THE MYSTERY OF LYLE AND LOUISE    29
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