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
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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
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.
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.
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