1. DNA fragments A, C, and E are the same size because they migrate to the same position in the gel.
2. DNA fragment D is the largest because it migrated the shortest distance from the well.
3. DNA fragments B and F are the smallest because they migrated the farthest from the well.
4. DNA fragment C is about 500 base pairs long, as it aligns with the 500 bp marker.
5. DNA fragment D is about 1000 base pairs long, as it aligns with the 1000 bp marker.
6. DNA fragment F is about 100 base pairs long, as it aligns with the 100 bp marker.
7. DNA fragment B is about 150 base pairs long, as it is between the 100 bp and 200 bp markers.
8. DNA fragment A is about 500 base pairs long, as it aligns with the 500 bp marker.
9. DNA fragment E is about 500 base pairs long, as it aligns with the 500 bp marker.
Parent Tip: Review the logic above to help your child master the concept of gel electrophoresis worksheet.