Answer :
Option D:Neither CAP nor the Lac repressor is bound to the Lac operon's regulatory DNA, and the Lac operon is not expressed.
What is e. coli ?
E. coli bacteria typically dwell in the intestines of healthy humans and animals. Most E. coli strains are either innocuous or very briefly cause diarrhea. However, other strains, including E. coli O157:H7, can cause vomiting, severe stomach pains, and bloody diarrhea.
E. coli can be spread by contaminated food or drink, particularly raw vegetables and undercooked ground beef. E. coli O157:H7 infections in healthy persons often resolve within a week. A life-threatening kind of renal failure is more likely to affect young kids and older adults.
E. coli germs are very contagious, especially when children and adults who are afflicted do not properly wash their hands. Those who live with young children who have E. coli infections include likely to get it themselves.
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