Multiple Choice
lacI codes for an__________,and when lacI is mutated,the lac operon is __________.
A) repressor; never expressed
B) repressor; constitutively expressed
C) structural gene; never expressed
D) activator; constitutively expressed
E) activator; never expressed
Correct Answer:
Verified
Correct Answer:
Verified
Q16: The catabolite repression system in E.coli essentially
Q17: Describe the positive control exerted by the
Q18: Describe what is meant by a gratuitous
Q19: What is an allosteric molecule?
Q20: Compare and contrast positive and negative controls
Q22: A constitutive mutation in the lac operon
Q23: What two important domains within a riboswitch
Q24: When lactose is first introduced into the
Q25: The cAMP- CAP complex and RNA polymerase
Q26: Certain mutations in the regulator gene of