Biology 9700 · AS & A Level · Replication and division of nuclei and cells

Replication and division of nuclei and cells — practice question

Some chemicals, which are used to halt tumour growth, act by stopping the DNA double helix from uncoiling and separating. At which stage of the cell cycle do they act?

Aanaphase
Binterphase
Cmetaphase
Dprophase

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