C: 2, 3 and 4 only
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Which structures will be present in a cell that causes cholera? 1 circular DNA 2 naked DNA 3 70S ribosomes
A light microscope is used to observe two structures that are 200 nm apart. How far apart are the structures when the…
Some features of cells are listed. 1 cytoplasm 2 cell surface membrane 3 ribosomes Which features are found in both a…
What explains why most viruses that cause diseases in humans are unaffected by antibiotics?
Why does the white blood cell count increase in people with leukaemia?
Where are antibodies found during an immune response? [Table with locations: on the surface of pathogens, on the surf…