Continuity and Change D.4 Cell & Nuclear Division (id: b224bda23)

本题目来源于试卷: Continuity and Change D.4 Cell & Nuclear Division，类别为 IB生物学

[问答题]
The graph below shows the relative amount vg)f/u9o,pqwsg nb5qnx * 98i of DNA in one celjsr )q ,rc .t,:xh6 qee*wx9rsl during one complete cell cycle. Each letter representsrxw6hqr*j :,es).9ce xs qr,t one stage of the cell cycle.


1.1.State which stage of mitosis or interphase is represented by stage B in the graph.

1.2.Explain your answer to part (i).

1.3.Bortezomib is an anticancer medication and arrests cells in the G$_2$ phase. If a cell shown in this graph began the cell cycle at A with 3 relative units of DNA, and Bortezomib was applied to the cell culture at stage A as well, estimate the relative amount of DNA in the cell at the end of C.

2.Explain why the amount of DNA in one cell remains the same in stages C and D.


3.The diagram above shows cells in different stages of mitosis. Label one cell that is in prophase and one cell that is in anaphase.

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