Nucleic acids are important information-carrying molecules

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Question 1 of 33 · 3 parts, 5 marks0:00

The diagram shows the amount of DNA in a cell measured over one full cell cycle, in arbitrary units.

(a)
Using the graph, determine the time period during which DNA replication is taking place.
[1]
(b)
Explain the change in DNA content that occurs between 6 and 12 hours.
[2]
(c)
Explain why the DNA content falls at the end of the cell cycle, after about 22 hours.
[2]

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