In true fishes, the gills primarily serve which
function?
a. gas exchange
b. feeding
c. water elimination
d. both feeding and gas exchange
e. all of these
Answer: a
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A high-energy electron from NADH entering the electron transport chain would travel among components of the chain in what sequence?
A. complex I, coenzyme Q, complex III, cytochrome C, complex IV, oxygen B. complex I, coenzyme Q, complex III, cytochrome C, ATP synthase, oxygen C. complex II, cytochrome C, complex IV, cytochrome C, oxygen D. complex II, coenzyme Q, complex IV, cytochrome C, ATP synthase, oxygen E. complex I, coenzyme Q, complex II, cytochrome C, complex III, coenzyme Q, complex IV, cytochrome C, oxygen
A vascular cylinder consists of cells of the _____
a. exodermis d. xylem and phloem b. endodermis e. endodermis, xylem and phloem c. root cortex f. all of these
Which panel of the figure contains the recombinant
DNA plasmids that will be incorporated into a host cell? a. A b. B c. C d. D e. none of these
Where do transcription regulators usually bind on a DNA double helix?
A. 5' end B. minor groove C. major groove D. single-stranded regions E. 3' end