Which pathogen is a misfolded protein that has no genetic material?
Answer and explanation
Correct answer: C. A prion, which causes disease by converting normal proteins into the abnormal form
- Step 1: Prions are infectious proteins with no DNA or RNA.
- Step 2: They cause normal host proteins to fold incorrectly, as in Creutzfeldt-Jakob disease.
Answer
a prion.
Why not the others: Viruses contain nucleic acids; bacteria and fungi are cellular organisms with DNA.
Practise more Infectious and Non-infectious Disease and Cell Function.
Free questions with an explanation for every one, and full timed NSW HSC mock tests.
More Infectious and Non-infectious Disease and Cell Function questions
- Which sequence best describes Koch's postulates for showing that a microbe causes a disease?
- Ross River virus in Australia is spread to people mainly by:
- Phytophthora cinnamomi, which causes dieback in many Australian native plants, is a:
- Which of the following is part of the innate immune response?
- What is the function of a plasma cell?
- Herd immunity can protect a population when the proportion of immune people exceeds the threshold 1 - 1/R0. For a disease with R0 = 5, what…