Quiz 4 - Quiz 4 1 As a researcher you discover a new...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Quiz 4 1. As a researcher, you discover a new disease afflicting human populations. Your research shows that, 1) the disease is caused by a toxin released somewhere in the intestine, 2) that drugs obstructing cell division as well as drugs obstructing gene expression in general seem to prevent the progression of the illness, but fail to bring patients back to normal health, 3) that the intestine and surrounding region do not contain any foreign or ‘non-native’ flora, and 4) antibiotics initially help restore health, but symptoms resume soon after patients finish taking them. Based on all these findings, what is the most likely explanation for the ultimate cause of the disease? a. The disease is caused by a prion b. The disease is caused by a parasite c. The disease is caused by a viroid d. The disease is viral e. The disease is bacterial The findings are highly suggestive of a viral infection targeting the native flora of the intestine. When a prophage in a bacterium enters the lysogenic cycle, it can express genes that change the bacterium’s phenotype.
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern