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Why must DNA replication have to occur before a cell can divide by mitosis?
A. to maintain the same number of chromosomes in the daughter cells as in the parent cell
B. to cause one of the cells produced to have double the number of chromosomes as the parent cell
C. to allow crossing over to occur in each of the cells produced
D. to cause all of the cells produced to have half the number of chromosomes as the parent cell

Respuesta :

gs5077414

Answer:

I think D is right answer

samueladesida43

DNA replication have to occur before a cell can divide by mitosis to maintain the same number of chromosomes in the daughter cells as in the parent cell.

DNA REPLICATION:

  • DNA replication is the process by which a cell makes a copy of its genetic material (DNA) to produce two identical copies of itself.

  • DNA replication occurs prior to every cell division including mitosis because each daughter cell must possess the same of chromosomes as the parent cell.

  • DNA replication occurs in the synthesis phase of the interphase stage of the mitotic cell division process.

  • Therefore, DNA replication have to occur before a cell can divide by mitosis to maintain the same number of chromosomes in the daughter cells as in the parent cell.

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