How much of Europe’s population was wiped
out by the Black Death?
a. 1/2
b. 1/3
c. 1/4
d. 1/5
e. 1/6
B
Biology & Microbiology
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________ bonds hold together the polypeptide chains that form an antibody.
A) Disulfide B) Peptide C) Hydrogen D) Phosphodiester
Biology & Microbiology
Alteration of the ________ structure of a protein can transform the protein into an infectious agent known as a prion
A) secondary B) primary C) quaternary D) tertiary
Biology & Microbiology
Below is a diagram of a bacterium. What structure does Y represent?
a. capsule b. nucleoid c. flagella d. cell wall e. fimbriae
Biology & Microbiology
Which of the following organisms is not normally found on the skin?
A. Staphylococci B. Diptheroids C. Candida spp. D. Malassezia spp.
Biology & Microbiology