The Western blot test is confirmatory for HIV because it
A. is more sensitive than the ELISA.
B. uses an indicator of some sort to visualize the antibody.
C. has fewer false positives than the ELISA.
D. requires electrophoresis, whereas the ELISA does not.
E. All of the choices are correct.
Answer: E
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a. chemoautotrophs only b. chemoheterotrophs c. photoautotrophs d. photoheterotrophs only e. chemoautotrophs and photoheterotrophs
This image is an example of _____
1.a haploid gametophyte stage of red algae
2.a heterotrophic water mold
3.a freshwater diatom
4.one ciliate preying upon another
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A) Aspartic acid B) Proline C) Serine D) Phenylalanine E) Tyrosine
Trichomonas vaginalis
A. causes vaginitis with a foul-smelling discharge in females. B. causes urethritis in males. C. has four flagella and an undulating membrane. D. does not produce cysts. E. All of the choices are correct.