Notice that the genes for lysogeny are clustered in an operon on
the “left” side of the phage plasmid, while the genes for lysis are
clustered in an operon on the “right” side of the plasmid.

At the beginning of each infection, transcription begins at two
“early” promoters.

“Leftward” genes

Early promoter P_Lcontrols leftward
transcription of early genes, beginning with the N gene.
The N protein plays an anti-termination role in transcription from
P_L. Leftward transcription is also enhanced by
binding of the cII/cIII complex to the
P_RE promoter, transcribing the cI
gene. The cI protein enhances transcription of “leftward”
genes and represses transcription of “rightward” genes. Genes under
control of P_L are involved in the integration
of viral DNA into the bacterial chromosome.

“Rightward” genes

Early promoter P_R controls rightward
transcription of genes, beginning with cro. The cro
protein enhances the transcription of the genes that are rightward
of the P_R, and prevents transcription of the
leftward gene, cI. Genes under the control of
P_Rare involved in the synthesis of head and
tail proteins as well as proteins that lyse the host cell.

Based on this information, determine the phenotype of
each phage mutation. (PLEASE SELECT WHICH GOES INTO WHICH
CYCLE)