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Cambridge IAL Biology (9700)
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Bio_level 3_cell Molecular Biology_prokaryotes Viruses And Cell Comparisons
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Question
Where is the main DNA found in a bacterial cell?
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Answer
In a circular DNA molecule in the cytoplasm, in a region called the nucleoid. It is not enclosed by a nucleus.
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1
Where is the main DNA found in a bacterial cell?
2
What are plasmids?
3
Give two structural differences between prokaryotic and eukaryotic cells.
4
Why are viruses described as non-cellular?
5
Why must a virus infect a host cell to reproduce?
6
What is the difference between a bacterial cell wall and a plant cell wall?
7
Compare the genome and envelope of Ebola virus, TMV, HIV and lambda phage.
8
What is the difference between a lytic and a latent (lysogenic) viral infection?