Question

​What must happen before a cell can begin mitosis?


What must happen before a cell can begin mitosis? 


  • The nucleus must divide in two. 

  • The chromosomes must be duplicated. 

  • The sister chromatids must be separated. 

  • A mitotic spindle must form. 

  • The nuclear envelope must break up. 

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Answer #1

2nd is correct option because duplication of genome is very very important so that two copy of genome can become and both daughter cell get one copy of that genome after mitosis. It occur in S phase of cell

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