Which of the following is not an agglutination test?
A. Counterimmunoelectrophoresis
B. Blood typing
C. Widal test
D. Weil-Felix reaction
E. Rapid plasma reagin (RPR) test
Answer: A
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The ____ phylum has an estimated 350,000 known living species of vascular, seed-bearing plants, and is the dominant
group of land plants today.
a. Cycadophyta b. Anthophyta c. Gnetophyta
d. Coniferophyta e. Ginkgophyta
In bacteria, genes that are often used together are controlled by a single promoter. Explain why this is the case
What will be an ideal response?
The presence of an antibiotic in the media where the bacteria are grown enables the selection of colonies grown from
a. transformed cells. b. nontransformed cells. c. cells that have the gene for resistance to the antibiotic. d. both a and c.
Which of the following colors of light has the
shortest wavelength? a. red b. yellow c. orange d. blue e. green