Culture of bacteria is having trouble dividing. Choose from the list of genes to show which of them might have a mutation responsible for the following malfunctions. Choose the best gene for each malfunction. All will not be used.
ftsZ
minC
zipA
xerD
DNA pol III
dnaA
TOPOIV
Malfunction 1-Two daughter cells result, but one has two copies of the chromosome concatenated into a big circle.
Malfunction 2-Replication never starts.
Malfunction 3-Cell divides at the poles
Malfunction 4-DNA replication has slowed such that it is not finished with the whole genome by the time cell is trying to septate.