The bacteriophage attaches itself by its tail to the cell wall of bacterium at:
Correct answer: C. Receptor site
- A. Anywhere on the cell
- B. Adhering surface
- C. Receptor site
- D. Binding site
Explanation
Bacteriophage attaches on specific receptor site on the surface of bacterial cell.The bacteriophage replicates only inside the bacterial cell. The first step in the replication of a bacteriophage is its attachment (adsorption) to host cell at receptor site on the cell wall of bacterium. During attachment, week chemical union between virion and receptor site takes place.So, it is the correct answer.
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Biological classification uses taxonomic ranks, binomial nomenclature and shared characteristics to organize life into kingdoms. The major groups include prokaryotes, protists, fungi, plants and animals, with comparisons based on cell type, cell wall, nutrition, body organization, reproduction and evolutionary relationships; prokaryotes lack a membrane-bound nucleus.
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