Which of the following structural motifs found in transcriptional regulators is the least likely to require an inverted repeat for binding to DNA?
A. helix-turn-helix
B. homeodomain
C. leucine zipper
D. zinc finger
D
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Which viral life cycle would result in a quicker death for an infected cell?
A. The prophage cycle B. The retroviral cycle C. The lysogenic cycle D. The lytic cycle
________, a chemical that hardens cell walls and supports terrestrial plants, is found in all plants EXCEPT ________
A) Lignin... bryophytes B) Cellulose... bryophytes C) Cellulose... ferns D) Lignin... ferns and bryophytes
In the figure on the right, carrying capacity is represented by
A) letter A B) letter B C) letter D D) letter E E) Carrying capacity isn't depicted on this graph
Planting a single crop such as soybeans in a large area year after year enables efficient.
a) harvesting of crops b) all of the other choices c) sowing of crops d) tending of crops