In which direction do the replication forks move in prokaryotic DNA replication?
a. 3’-5’
b. 5’-3’
c. both directions
d. the replication forks do not move
c. both directions
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Which stage of cellular respiration requires oxygen that you breathe?
A. Glycolysis B. Electron transport chain C. Citric acid cycle D. Both the citric acid cycle and the electron transport chain require oxyen
Cuvier, an anatomist and paleontologist,
proposed that a. all present-day organisms have descended, with adaptations, from one--or possibly a few--original organisms. b. the earth's history has been marked by several periods when destruction of populations was widespread and that, after each such period, the earth was repopulated. c. evolutionary changes in organisms are caused by use and disuse. d. although evolution is responsible for all the changes that happen to species, one center of creation resulted in the original members of each species. e. none of these are true
Which of the following pairings, indicated by letters referring to blood type phenotypes, CANNOT produce a child with type B blood?
a) A x B b) B x O c) O x AB d) AO x AO e) All of the above could produce a child with type B blood.
Bacterial cells that are isolated from a healthy human's skin and appear as clusters of cocci are likely of the genus
a. Bacillus. b. Escherichia. c. Staphylococcus. d. Pseudomonas.