Multiple Choice
Which of the following is an example of a trans-acting factor?
A) -galactosidase
B) operator site
C) lacI repressor protein
D) lactose
E) permease
Correct Answer:

Verified
Correct Answer:
Verified
Q9: Which of the following DNA-binding proteins
Q10: Consider an E.coli cell with the following
Q11: Which of the following is an
Q12: In the presence of abundant tryptophan:<br>A)the attenuator
Q13: The enzyme <span class="ql-formula" data-value="\beta"><span
Q15: A super repressor mutation (I<sup>S</sup>)results in:<br>A)no transcription.<br>B)inducible
Q16: The order of the structural genes controlling
Q17: The repression of the transcription of lactose-metabolizing
Q18: A constitutive operator mutation (O<sup>c</sup>)results in:<br>A)no transcription.<br>B)inducible
Q19: A partial diploid of genotype I<sup>+