Using Poster Board to Map Your DNA

Mapping out chromosomes is fun. You know what’s really fun? Doing it on poster board.

The hardest part is getting the math right. The length of the chromosomes, the length of the tape. But otherwise, it’s pretty simple.

What you need:

  • A Sharpie or pencil
  • Scissors
  • Washi tape
  • Poster board
  • DNA to map

That’s it!

The below is a relative’s Irish DNA for his paternal side only. I was mapping back to his great-grandparents and each color represents a great-grandparent.

The great part about using tape like this – you can add in those unknown segments over time, and you can even make changes if necessary (it happens, sometimes). It’s a fun project for sure!

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