Lab Report: 14 Bacteriophage Specificity 1. What was the purpose of this exercise?
1. Purpose of the exercise: To test the different specificity of bacteriophage towards different species of bacteria
3. The fact that bacteriophage infected the bacteria can be checked by observing lysed bacterial cells and viral plaques under microscope.
4. Bacteriophage will only infect those bacteria for which it is specific. Host cell specificity is the reason for differential infection.
5. Bacteriophage recognizes specific cell surface receptors which are present on certain bacteria. Bacteria which do not have these receptors will not be infected by bacteriophage.