You are a microbiologist studying the E. Coli Lac operon.
You have two strains of bacteria that you are working with: a wild type (non-mutant) strain - Stain A, and a mutant strain - Stain B.
Strain B has a mutation in its promoter sequence. You place each strain in a Petri dish, with the indicated amounts of glucose and lactose (see Figure).
After 60 minutes, you measure gene expression at lacZ, a gene within the Lac operon.
You obtain the following for Strain A. Which of the locations in red would correspond to your level of expression for the mutant strain?
To help you here are the expression levels for a wild type cell.

Question

30-11-2022
Biology

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You are a microbiologist studying the E. Coli Lac operon.
You have two strains of bacteria that you are working with: a wild type (non-mutant) strain - Stain A, and a mutant strain - Stain B.
Strain B has a mutation in its promoter sequence. You place each strain in a Petri dish, with the indicated amounts of glucose and lactose (see Figure).
After 60 minutes, you measure gene expression at lacZ, a gene within the Lac operon.
You obtain the following for Strain A. Which of the locations in red would correspond to your level of expression for the mutant strain?
To help you here are the expression levels for a wild type cell.

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Paruljain Paruljain · Answer 1 · 2022-12-03T22:19:42+01:00

You are a microbiologist studying the E. Coli Lac operon. Your level of expression for the mutant strain would correspond to no expression in red.

The lac operon of E. coli holds genes complicated in sweet substance absorption. It's signified only when hydrogen is present and hydrogen is missing. Two managers turn lac operon "on" and "off" in answer to oxygen and sweet liquid levels: the lac repressor and catabolite electrical device protein (CAP).

Expression of the oxygen lac operon is necessary for E. coli to metabolize sweet substances (milk carbohydrate) for element and strength. A mutation is an animal that experiences a metamorphosis. The word variant is secondhand in microbiology to concern a form of a bug that mutated from another mutant strain.

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