What class of antibody functions through neutralization and agglutination of antigen, but cannot cross epithelial cells?

A) IgM
B) IgE
C) IgG
D) IgD
E) IgA


Answer: D) IgD

Biology & Microbiology

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During PCR, where does the energy come from that adds the nucleotide to the growing DNA strand?

A. Taq polymerase B. the primers C. from the elevated temperature that you are subjecting the reaction mix to D. the incoming nucleotides E. ATP

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Outline the two parts of the eukaryotic cell cycle and describe the three main checkpoints in cell cycle regulation

What will be an ideal response?

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A breath test assaying for radioactive carbon dioxide may be used to indicate the presence of

A. E. coli. B. Pseudomonas. C. Streptococcus pyogenes. D. Helicobacter pylori.

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Portuguese water dogs have evolved to spend a lot of time in water and thus have webbed

feet. What process does not occur in these dogs but does occur in other dogs that do not have webbed feet?

a. apoptosis b. mitosis c. cell differentiation d. signaling pathways

Biology & Microbiology