the molecular weights (for the hind III fragments) beginning with the fragments nearest the origin are shown below
fragment # , size in kilobase pairs (kb)
1, 23.13
2 , 9.42
3 , 6.56
4 , 4.36
5 , 2.32
6 , 2.03
7 , 0.564
8 , 0.125
explain why the fragments nearest the origin have more kilobase pairs.