You are a researcher attempting to understand DNA replication. You have two cancerous cells, each one treated with a specific substance and containing a single, linear chromosome. In one of the cells, nucleotide base information is missing at the end of a chromosome after replication. The substance applied to this cell
a. caused a nucleotide substitution in the gene encoding helicase.
b. caused a frameshift mutation in the gene encoding RNA Polymerase.
c. caused a nonsense mutation in Ligase.
d. prevented DNA polymerase from folding properly. e. caused telomerase to misfold into a non-functional shape