Which of the following choices shows these steps in the correct order?
The steps of DNA fingerprinting are shown below.
1. Isolate DNA from samples
2. Label DNA with fluorescent marker
3. PCR using primers that flank STRs
4. Detection of fluorescent fragments
5. Gel electrophoresis
A. 1 - 2 - 3 - 4 - 5.
B. 1 - 2 - 3 - 5 - 4.
C. 1 - 5 - 3 - 2 - 4.
D. 1 - 3 - 2 - 5 - 4.
E. 3 - 1 - 2 - 5 - 4.
D. 1 - 3 - 2 - 5 - 4.
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Agglutination tests can be used to diagnose diseases caused by
A. bacteria. B. hormones. C. fungi. D. viruses. E. All of the choices are correct.
Basic dyes such as methylene blue bind to cellular molecules that are
A. aromatic. B. hydrophobic. C. negatively charged. D. positively charged.
If a cell has a large quantity of rough ER, what does this suggest about the activity of that cell?
a. The cell stores fats. b. The cell is dying. c. The cell serves a protective function. d. The cell produces a lot of protein.
To prevent the overgrowth of cyanobacteria and algae in water reservoirs, the water is often treated with
A. antibiotics. B. lactic acid. C. copper sulfate. D. propionic acid. E. iodine.