Species X is a single-celled eukaryote.
Species X has been genetically modified to produce penicillin, which does not harm the cell walls of species X.
What may be concluded from this information?
1 The cell walls of species X are chemically different from those of bacteria.
2 The cell walls of species X are made of peptidoglycan.
3 The cell walls of species X are made of cellulose.
1 )
1 and 2
1 only
3 )
2 only
4 )
3 only
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