Which one of the following is a characteristic of integrins in metastatic cells?
A. These integrins give the cells a stronger
attachment to the extracellular matrix,
especially that of the basal lamina.
B. These integrins allow the cells to cross the
capillary basal lamina.
C. These integrins allow the cells to cross the
layer of capillary endothelial cells.
D. These integrins can be targeted by an
anticancer therapy that specifically targets the
metastatic cells.
E. All of these choices are correct.
E
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Many antibiotics kill bacteria because they hinder translation by prokaryotic ________.
A. cytoskeleton B. ribosomes C. nucleoids D. cytoplasm E. capsules
On what basis are fungi classified as Fungi Imperfecti, or Deuteromycota?
A. based on whether they have a cap containing gills B. based on if they can grow in acidic soil C. based on if the fungus lacks a sexual state D. based on their ability to cause diseases in animals E. based on if they have a special fungal sac
Which of the following statements about transmission electron microscopy is INCORRECT?
A. Two-dimensional images are produced. B. Magnets serve as lenses. C. Up to 1,000,000X magnification may be achieved. D. Living specimens may be used. E. Stains can be applied to increase electron density.
A scientific theory is _________.
Fill in the blank(s) with the appropriate word(s).