I thought of cell division in eukaryotes and used that analogy and chose b. Any comments/discussion on this question?
Answer credited to @Asafmen
DNA replication happens during the S phase for all living organisms.
A is incorrect since Bacteria do not contain Nuclei.
C is incorrect, it is the Central Dogma- unrelated to DNA replication.
There are now two possible answers:
B, since it is true to say that DNA replication happens prior to the fission itself- where you can clearly see the separated DNA before the cell does. This is the orthodox answer.
Or it could be the S phase, D, but Binary Fission has no M phase- similar to Eukaryotes- remember that there are no Nuclei or Linear Chromosomes.
It is a tricky question based on technicalities.
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