How many replication forks are there at a replication origin?
A. 1
B. 2
C. 3
D. 4
E. 5
B. 2
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Differences between mitochondrial and E. coli electron transport chains include the following:
A. The E. coli chain contains a different array of cytochromes. B. Higher P/O values are observed in E. coli. C. The electron transport chain does not involve membranes in E. coli. D. The fundamental principles on which they operate are different.
Match each ventricle of the human brain with the region of the brain within which it is located.
A blocked coronary sinus would block blood flow:a
into the superior vena cava. b. into the inferior vena cava. c. into the pulmonary arteries. d. returning from the pulmonary arteries. e. returning from the coronary circulation
In sea urchin development, the archenteron becomes the:
A) endoderm. B) lungs. C) ectoderm. D) digestive tube.