Which of the following is not a catabolic reaction that cells use to get energy from nutrients?
A. cellular respiration
B. anaerobic respiration
C. photosynthesis
D. digestion
E. fermentation
Answer: C
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Which of the following groups has been planted extensively along U.S. streets because of their resistance to pollution?
A) Bryophytes B) Liverworts C) Cycads D) Ginkgos E) Conifers
Why don't reptilian embryos dry out in a desert habitat?
A) Reptiles produce lots of defensive slime. B) Reptiles are endothermic. C) Reptiles produce shelled amniotic eggs. D) Reptile eggs are protected by a jelly-like coating. E) The placenta facilitates gas exchange between the mother and the embryo.
Prokaryotes have chromosomes that are circular in structure. Which of the following would such chromosomes lack?
A. telomeres B. DNA double helix C. complementary base pairs D. replication origin E. sugar-phosphate backbone
Position effect variegation generally results from
a. a chromosome rearrangement that puts a gene in a region adjacent to heterochromatin. b. a chromosome rearrangement with a breakpoint in the middle of a gene. c. a chromosome rearrangement that puts a gene near a strong promoter. d. point mutations in a gene. e. transcription factors activating genes in some cells and not others.