Which antibody is most commonly associated with
an allergic reaction?
a. IgG
b. IgA
c. IgD
d. IgM
e. IgE
Answer: e
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According to the figure above, what is the LEAST likely explanation for the data after 1985?
A) emigration B) immigration C) introduction of new alleles into the population D) increased resources in the area
A(n) (operon/codon/gene) is a specific sequence of nucleotides that codes for a protein or an RNA molecule
What will be an ideal response?
The following graph represents the concentration of cyclins over the course of the cell cycle. Which of the following statements is TRUE regarding the phase of the cell cycle where the red arrow is pointing? 
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A. At this point in the cell cycle, chromosomes have properly aligned on the metaphase plate and are beginning to separate. B. At this point in the cell cycle, the cell is determining if conditions are favorable for cell division. C. At this point in the cell cycle, DNA has already been replicated correctly. D. At this point in the cycle the cell is continuing to grow and make abundant tubulin proteins. E. At this point in the cell cycle, all sister chromatids are fully formed.
The high-energy electrons of photosystem I are directly passed on to ____
A), ferrodoxin. B), plastoquinone. C), plastocyanin. D), ATP synthase.