Summarize and compare the properties of DNA polymerase I, II, and III.

A sample of double-stranded DNA is found to contain 20% cytosine. Determine the percentage of the three other DNA nucleotides in the sample.

Bacterial DNA polymerase I and DNA polymerase III perform different functions during DNA replication.

If a strain of E. coli acquired a mutation that inactivated DNA polymerase III function, would the cell be able to replicate its DNA? Why or why not?

Bacterial DNA polymerase I and DNA polymerase III perform different functions during DNA replication.

Identify the principal functions of each molecule.