Question

mckinnon, jason
binary fission produces two identical bacterial cells, as shown below.
image of bacterial cell, replicating dna, cell wall pinches off, two identical bacterial cells
why must the dna replicate before the cell divides?
a the new cells need instructions for survival.
b the original dna might mutate after the cell divides.

Explanation:

DNA contains the genetic instructions (genes) that cells need to function, grow, and survive. During binary fission, when a bacterial cell divides into two new cells, each new cell must have a complete set of these instructions. Replicating DNA before division ensures that each daughter cell receives a copy of the DNA with all the necessary genetic information to carry out essential life processes. Option B is incorrect because DNA replication before division is not related to preventing mutations after division; its primary purpose is to provide genetic material to new cells.

Answer:

A. The new cells need instructions for survival.