Question 55

(Multiple Choice)

Which of the following is true about the life cycle of phageWhich of the following is true about the life cycle of phage ? A) When phage   injects the Cro protein into E. coli it enters the lytic cycle. B) When phage   injects the repressor into E. coli it enters the lysogenic pathway. C) Phage  enters the lytic cycle when the repressor occupies the OL and OR sites. D) Phage   enters the lysogenic pathway when the Cro protein occupies the OL and OR sites. E) Translation of the cro mRNA is blocked by cro antisense RNA.?


A) When phage 11ed1245_cacf_7483_923d_9933317c49c0_TB5884_00 injects the Cro protein into E. coli it enters the lytic cycle.
B) When phage 11ed1245_cacf_7483_923d_9933317c49c0_TB5884_00 injects the repressor into E. coli it enters the lysogenic pathway.
C) Phage 11ed1245_cacf_7483_923d_9933317c49c0_TB5884_00enters the lytic cycle when the repressor occupies the OL and OR sites.
D) Phage 11ed1245_cacf_7483_923d_9933317c49c0_TB5884_00 enters the lysogenic pathway when the Cro protein occupies the OL and OR sites.
E) Translation of the cro mRNA is blocked by cro antisense RNA.

Answer