When a cell replicates it goes through a series of events that can be summarised by the following diagram - VCE - SSCE Biology - Question 1 - 2008 - Paper 1
Question 1
When a cell replicates it goes through a series of events that can be summarised by the following diagram. The cycle moves in a clockwise direction and includes mito... show full transcript
Worked Solution & Example Answer:When a cell replicates it goes through a series of events that can be summarised by the following diagram - VCE - SSCE Biology - Question 1 - 2008 - Paper 1
Step 1
Using crosses, mark on the graph below the relative amount of DNA at point B
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Answer
At point B, the cell is in the Gap 1 phase where the DNA is yet to be replicated. Therefore, mark on the graph at point B to show that the relative amount of DNA is at its lowest level, which is represented as 1 unit.
Step 2
Using crosses, mark on the graph below the relative amount of DNA at point D
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Answer
At point D, the cell is in the S phase of the cycle, during which DNA replication occurs. Hence, mark on the graph at point D to indicate that the relative amount of DNA has now doubled to 2 units.
