Bacteriopahage that infect E. coli are called_____________?
Correct answer: C. T type
- A. M type
- B. N type
- C. T type
- D. S type
Explanation
The bacteriophages that infect Escherichia coli are classically called T phages, including T1 through T7. The other lettered types are not the standard designation for this well-known group, so students may guess another letter without recalling the T-phage examples.
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Viruses are acellular infectious particles made of genetic material enclosed by a protein capsid, sometimes with a lipid envelope. Their replication depends on a host cell and may follow lytic or lysogenic cycles, so viral structure and reproduction differ fundamentally from those of cellular organisms such as bacteria.
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