Where does the name "scrapie" come from?
a. The prion disorder causes infected sheep to scrape against objects until their skin is raw.
b. The prions cause amyloid plaques to scrape against each other.
c. The disease results in the animal wasting away, sending them to the "scrap heap."
Ans: a. The prion disorder causes infected sheep to scrape against objects until their skin is raw.
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A. true B. false
Amniocentesis involves sampling
a. the fetus directly. b. the fetal cells floating in the amniotic fluid. c. sperm. d. blood cells. e. placental cells.
Which type of cell would probably provide the best opportunity to study lysosomes?
a. muscle cell d. leaf cell of a plant b. nerve cell e. bacterial cell c. phagocytic white blood cell
The use of cancer-specific antigens to generate antibodies that target cancer cells is a process known as
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