Aligning All Samples Exercise (Breakout):


15 Minutes


We just learned about how to use RSEM & STAR, but now we need to align all of the rest of our samples to the reference genome. We’ll use the concepts we’ve learned earlier in this breakout exercise.


Instructions:


  • One group member should share their screen in the breakout room. If nobody volunteers, a helper may randomly select someone.
  • The group members should discuss the exercise and work together to find a solution.
  • After a solution is found, allow time for all members to complete the exercise.


  • Review what we learned about running RSEM + STAR, to construct an appropriate command for aligning one of our samples.
  • Use a bash variable in our alignment command to quickly and easily align samples 2-4.
  • View the output, and verify that we have the files we need.


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