Homework SourseThe pattern of STRs from the crime scene is shown above what
The pattern of STRs from the crime scene is shown above, what can you conclude? (Choose one below)
a. Suspect #1 could be guilty.
b. Suspect #2 could be guilty.
c. Neither suspect #1 nor suspect #2 can be eliminated from suspicion.
d. DNA evidence can eliminate both suspects from suspicion.
e. Either suspect #1 or #2 could be guilty.
| Samples | AMEL | THO1 | TPOX | CSF1PO |
| Crime Scene | XY | 8,9 | 9,10 | 12,13 |
| Victim | X | 6,7 | 10,11 | 9,10 |
| Suspect #1 | XY | 8,9 | 9,11 | 10.13 |
| Suspect #2 | XY | 9,9 | 9,10 | 12,13 |
Solution
The correct answer is ‘d’. DNA evidence will eliminate both suspects.
Explanation: Please note that the markers of victim are not found at the crime scene. All are different. So, the victim itself comes under suspicion for accusing the wrong act.
DNA evidence is proving that Suspect 2 was present at the crime scene. But it is not proving that suspect 2 has committed the crime. This is because STR of suspect 2 are matching the crime scene but not the victim.
