10.44 About midnight on Saturday, the strangled body of a regular patron of the Seedy Lounge is found in an alleyway near the bar. The police interview the workers and patrons A-R remaining in the bar. A few of the patrons indicate that several individuals, including the bartender, owed moneyto the victim. The police notice that the bartender and patronsA, C, D, F, K, L, O, and R all have recent cuts and scratches on their faces and backs of their necks, but are told that these happened during mud-wrestling matchesearlier in the evening. DNA samples are obtained from thebartender and the bar's patrons, from tissues of the victim, and from scrapings of her fingernails. STR analyses are performed on the DNA samples using three of the markers described in Question 10.43: THO1, D18S51, and D21S11. The sizes of the PCR products obtained in each DNA sample for each marker are shown in Table 10.A. Table a. How many different alleles are present at each marker in these samples and how does this compare to the total number of alleles that exist? How do you explain the appearance of only one marker allele in some individuals? How do you explain the appearance of three and four marker alleles in the DNA sampleobtained from the victim's fingernails?b. Who should the police investigate further if they considerthe results obtained using only the D21S11 marker? Explain your reasoning.c. Who should the police investigate further if the considerthe results obtained using all three STR markers? Explain your reasoning.

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