Unlike Bacteriophage T₄, L Phage Is Capable of Both Lytic

question 3

Multiple Choice

Unlike bacteriophage T₄, l phage is capable of both lytic and lysogenic infection.The lysogenic state is maintained by:

• A)Chemical modification of cytosine bases in the viral DNA, forming hydroxymethyl-cytosine.
• B)Transcription of the cro gene.
• C)Transcription of the gene for the l repressor.
• D)Transcription of the xis and cro genes.
• E)Exposure of the bacterium to ultraviolet radiation or other DNA-damaging agents.

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