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3 experiments, . Type IIIS strain has polysaccharide capsule (protects it…
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. Type IIIS strain has polysaccharide capsule (protects it from the host's immune system). Host will die.
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- When the cell is infected, T2 will replicate (lytic cycle)
• Type IIR strain does not have polysaccharide capsule. (killed by the host's immune system)Host alive.
• Bacteria from TypeIIIS strain that were killed by heat and were added to IIR strain bacteria kills the mice.(Both are harmless)
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Conclusion:
-The DNA had survived the heating process and was taken up by the IIR strain bacteria. -The IIIS strain DNA contains the genes that form the shielding polysaccharide part from attack.
-Thus,the former IIR strain bacteria were now protected from the host's immune system and could kill the host.
c) Some of T2's genes are transcribed and translated by the host cell. Copies of the phage DNA will be made.
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e) Another gene is transcribed and translated into molecules of lysozyme. The lysozyme attacks the peptidoglycan wall.
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