How are the 𝐸.coli in your intestines different that the ones that produce the toxin in the undercooked ground beef?
A. The ones that produce toxin have an 𝑅 plasmid integrated
B.The ones that produce the toxin have a prophage in its genome
C.The ones in your intestines are immature and don't produce the toxin
D. The ones that produce toxin can't tolerate the 𝑝𝐻 of the intestines

Question

How are the 𝐸.﻿coli in your intestines different that the ones that produce the toxin in the undercooked ground beef?
A. ﻿The ones that produce toxin have an 𝑅 ﻿plasmid integrated
B.The ones that produce the toxin have a prophage in its genome
C.The ones in your intestines are immature and don't produce the toxin
D. ﻿The ones that produce toxin can't tolerate the 𝑝𝐻 ﻿of the intestines

Accepted Answer

***B*** ∻Key Concept∻ ⚹Prophage presence in bacterial genome⚹ ∻Explanation∻ ⚹Certain strains of E. coli, such as E. coli O157:H7, which can be found in undercooked ground beef, have a prophage integrated into their genome. This prophage carries the genes for Shiga toxin production, which is responsible for the harmful effects of these bacteria. In contrast, the E. coli typically found in the human intestines do not have this prophage and thus do not produce the toxin.⚹◊How does the presence of an 𝑅 plasmid or a prophage affect the ability of 𝐸.\ufeffcoli to produce toxins?⍭ Generate me a similar question◊

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