Oxygen within an anaerobe jar is converted to _______, creating an anaerobic environment.
A) carbon dioxide
B) water
C) methylene blue
D) palladium
B) water
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Eukaryotes have ________ in their cytoplasmic membranes, which serve to strengthen and stabilize the membrane and make it less flexible. Many bacteria have similar molecules, known as ________, in their cytoplasmic membranes that have a similar role
A) ether bonds / ester bonds B) lipids / phospholipids C) sterols / hopanoids D) phospholipids / lipopolysaccharides
Which two of the following have operated to increase divergence between mosquitofish populations on Andros?
1. improved gene flow 2. bottleneck effect 3. sexual selection 4. founder effect 5. natural selection A) 1 and 3 B) 2 and 3 C) 2 and 4 D) 3 and 5
Antibodies are most similar in structure to
A) T-cell receptors. B) bacteria. C) viruses. D) B-cell receptors. E) macrophages.
What virulence factor(s) do all Gram-negative bacteria share?
A. proteases that destroy IgA antibodies B. fimbriae C. lipid A D. a glycocalyx E. both fimbriae and a glycocalyx