Question

The lac operon of E. coli is ________ when the repressor is bound to ________. Group of answer choices active; tryptophan inactive; lactose active; lactose inactive; tryptophan

Answer 1

The lac operon of E. coli is active when the repressor is bound to lactose

Morphologically, the bacteria E. coli ( known as Escherichia coli ) is straight, rod shape (bacillus) bacterium.

Its colony is identified in two major forms, namely:

• The smooth form
• The rough form

E. coli belongs to the family Enterobacteriaceae, order Enterobacteriales, class Gammaproteobacteria and phylum Proteobacteria.

What are bacteria?

These are simple prokaryotic and unicellular organisms which posses the following characteristics:

• They reproduce as- e - xu -ally
• They are microscopic organisms
• Some are parasites while some saprophytes

So therefore, The lac operon of E. coli is active when the repressor is bound to lactose

Learn more about bacteria E. coli:

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