What Substrate Forms a Colored Product in the Presence Of \beta

question 18

Multiple Choice

What substrate forms a colored product in the presence of $\beta$ -galactosidase?

• A) p-nitrophenyl galactose
• B) Coomassie-galactose
• C) ethidium-galactose
• D) X-gal
• E) None of the answers is correct.

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Definitions:

Discharge Lines

Tubes or pipes through which liquids or gases are released or expelled from a system or container.

Blocked

Prevented from moving or functioning normally, as in a blocked artery impeding blood flow or a blocked software application due to security settings.

Clean Technique

A method of reducing the number of microorganisms and preventing the spread of infections, mainly in medical and health care settings, without the strict sterility of surgical techniques.

Microorganisms

Tiny living organisms, such as bacteria, viruses, fungi, and protozoa, that can only be seen under a microscope and play various roles in the environment, human health, and disease.