Analyzing DNA Profiles to Solve the Crime
Below are the DNA profiles of six poached elephants plus a profile of seized ivory from an unknown elephant. Your goal is to find an exact match (which means that all the bands for all the markers are in the same positions) between the ivory sample on the far left and one of the elephants.
The names of the four STR markers used for these profiles appear at the top of the gel. Show each marker by clicking on the "+" next to its name. You can compare the DNA profile of the ivory sample to the profiles of the other elephants.
Select the DNA profile that matches by selecting the circle below one of the elephant photos. The match must be across all the markers. If there is no confirmed match based on the available data, select the “No Match" column. Then click "Am I Right?" at the bottom of the page.
