Study Biology

Question 24

(Multiple Choice)

Examine this diagram of short tandem repeats found in DNA profiling of three suspects in a crime.Man 1 shares the same number of STRs as 1 in 5,000 people.Man 2 shares the same number of STRs as 1 in 10,000 people.Man 3 shares the same number of STRs as 1 in 3,500 people.DNA extracted from samples at the crime scene found 6 STR repeats,giving the interpretation that Examine this diagram of short tandem repeats found in DNA profiling of three suspects in a crime.Man 1 shares the same number of STRs as 1 in 5,000 people.Man 2 shares the same number of STRs as 1 in 10,000 people.Man 3 shares the same number of STRs as 1 in 3,500 people.DNA extracted from samples at the crime scene found 6 STR repeats,giving the interpretation that A) it is more rare to have six STRs than five or seven. B) Man 2 must be guilty, based on this proof. C) STR numbers match Man 2. D) no conclusion can be made, because the STRs all repeat the same sequence of C-T-A. E) Man 2 is likely guilty, considering that he has a rare STR profile that matches crime scene samples.


A) it is more rare to have six STRs than five or seven.
B) Man 2 must be guilty, based on this proof.
C) STR numbers match Man 2.
D) no conclusion can be made, because the STRs all repeat the same sequence of C-T-A.
E) Man 2 is likely guilty, considering that he has a rare STR profile that matches crime scene samples.

Answer

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