What is the difference between pathogenic and non-pathogenic E. coli in relation to the human host?

What will be an ideal response?


Answer: Most nonpathogenic E. coli strains are found in the cecum and colon and routinely pass through the body through the feces without causing disease. Pathogenic enterotoxigenic strains of E. coli contain genes encoding fimbrial colonization factor antigens, leading to bacterial adherence in the host small intestine. These bacteria produce enterotoxins, leading to diarrhea.

Biology & Microbiology

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The term N-terminus refers to the presence of a(n) ________ at the 5? end of a polypeptide.

A. oxygen atom B. carboxyl group C. amino group D. carbonyl group E. sulfate group

Biology & Microbiology

Name any checkpoint gene

What will be an ideal response?

Biology & Microbiology

Are the results for Suspects 1 and 2 identical?

a. yes b. no

Biology & Microbiology

List four lines of evidence that support a link between cancer and genetics. Describe the ultimate cause of cancer and

how an individual’s life-style might reduce the chances of developing cancer. What will be an ideal response?

Biology & Microbiology