Complete Table 2 to show three differences between DNA in the nucleus of a plant cell and DNA in a prokaryotic cell - AQA - A-Level Biology - Question 8 - 2020 - Paper 1
Question 8
Complete Table 2 to show three differences between DNA in the nucleus of a plant cell and DNA in a prokaryotic cell.
Table 2
DNA in the nucleus of a plant cell | D... show full transcript
Worked Solution & Example Answer:Complete Table 2 to show three differences between DNA in the nucleus of a plant cell and DNA in a prokaryotic cell - AQA - A-Level Biology - Question 8 - 2020 - Paper 1
Step 1
Difference 1: Structure
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Answer
DNA in the nucleus of a plant cell is associated with histones and proteins, forming chromatin, while in prokaryotic cells, DNA is not associated with histones.
Step 2
Difference 2: Shape
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Answer
The DNA in plant cells is linear, whereas prokaryotic DNA is typically circular in structure.
Step 3
Difference 3: Presence of Plasmids
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Answer
Plant cells possess nuclear DNA without plasmids, while prokaryotic cells can have plasmids as separate, small DNA molecules.
