Specimens are prepared for ________ microscopy using electron-dense stains

A) atomic probe
B) bright-field
C) confocal
D) transmission electron
E) scanning tunneling


D
Bloom's Taxonomy: Comprehension
Section: Staining
Learning Outcome: 4.16

Biology & Microbiology

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The tiny projections of hair-like cells located on the villi are called ________. a. flagella b. brush border cells c. None of these choices

d. cilia e. microvilli

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The response to selection, R, is equal to

A) the heritability (h2) of a trait. B) the strength (S) of selection. C) the difference between h2 and S. D) S/h2. E) h2S.

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When genotypes at one locus of a chromosome are nonrandomly associated with the genotypes at another locus of the same chromosome, the two loci are ________

A) in linkage equilibrium B) in linkage disequilibrium C) nonrandomly associated D) None of the above.

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The gene for Tay-Sachs disease codes for a nonfunctional form of the enzyme hexosaminidase A (or Hex A). It has been found that a person with only one-third the maximum amount of Hex A can function absolutely normally. Please characterize the heredity of

Tay-Sachs disease. A) multiple allelic B) codominant C) dominant D) recessive

Biology & Microbiology