Question

11 why does the dna have to be copied before mitosis?
a so one new cell can get more dna than the other to help it grow
b so each of the new cells will have half of the number of chromosomes
c it doesnt need to be copied, if the cell divides the dna should divide too
d so each of the new cells will have the same number of chromosomes

Explanation:

Mitosis produces two genetically identical daughter cells. DNA replication before mitosis ensures that the total genetic material is doubled, so when the cell divides, each new cell receives an identical, full set of chromosomes matching the parent cell. Option A is incorrect because mitosis creates equal cells, not ones with unequal DNA. Option B describes meiosis, not mitosis. Option C is wrong because DNA must replicate first to avoid halving the genetic material.

Answer:

D. so each of the new cells will have the same number of chromosomes