Lac Operon Video Lessons

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Problem: A lac operon of genotype lacI– lacP+ lacO+ lacZ+ lacY+ will produce β-galactosidase AND permease whenA. glucose is present.B. lactose is present or not.C. lactose is absent.D. lactose is present.

FREE Expert Solution

lac operon: synthesizes proteins for the metabolism of lactose (lac genes)

• when lactose and glucose are present, lac genes are not expressed

• when only lactose is present, lac genes are expressed


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Problem Details

A lac operon of genotype lacI lacP+ lacO+ lacZ+ lacY+ will produce β-galactosidase AND permease when

A. glucose is present.

B. lactose is present or not.

C. lactose is absent.

D. lactose is present.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Lac Operon concept. You can view video lessons to learn Lac Operon. Or if you need more Lac Operon practice, you can also practice Lac Operon practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Dawson & Nunnari's class at UCD.