Chargaff's rule will be applied to know the percentage of missing bases.
The table is filled and shown in attachment.
Step-by-step explanation:
According to the Chargaff's rule, the base pairs of pyrimidine and purine should have the ratio of 1:1.
It is based on the principle that Guanine bonds with Cytosine should be in equal concentration while Adenine bonds with thymine should be in equal concentration. Chargaff rule applies to the DNA only.