Which of the following statements best describes DNA polymerase?
A. It is an enzyme that catalyzes the addition of nucleotides to the 3? end of a growing DNA strand.
B. It is an enzyme that polymerizes the DNA and keeps the replication fork open.
C. It is an enzyme required to produce a primer needed for DNA replication.
D. It is an enzyme that catalyzes the addition of nucleotides to the 5? end of a growing DNA strand.
E. It is an enzyme required to glue pieces of DNA fragments together.
Answer: A
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The process of aerobic metabolism, carbon-containing molecules are broken down. What is the energy from the electrons used for?
a. to generate a hydrogen ion gradient b. to heat the organism in a cold environment c. to alter enzyme structure d. to directly supply the energy needs of an organism
What part of the reef receives the full impact of wave energy?
a. Forereef b. Drop off c. Reef crest d. Back reef
Which of the following factors is probably the most important in the success of the reintroduction of wolves in Yellowstone National Park?
A. The cooperation of local residents. B. The genetic diversity in the population. C. The availability of prey species. D. The hybridization of the species with coyotes. E. Both "The cooperation of local residents" and "The availability of prey species."
The Calvin cycle occurs in the chloroplast
A) stroma. B) grana. C) thylakoid lumen. D) thylakoid membrane. E) outer membrane.