DNA replication occurs during which phase of the cell cycle?
a. anaphase
b. interphase
c. prophase
d. telophase
Answer: b. interphase
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Which of the following statements about DNA replication is INCORRECT?
A. It begins at multiple origins of replication sites along eukaryotic chromosomes. B. It proceeds with the addition of new nucleotides to the 3? end of a growing DNA strand. C. It is powered by the hydrolysis of ATP. D. Each strand within the DNA double helix is used as a template for synthesis of a new strand. E. It requires that each strand in the double helix be separated from the other.
Kansas and Pennsylvania are approximately at the same latitude. Yet why are the potential natural communities in Kansas mostly grassland and in Pennsylvania mostly temperate forest?
A. different vegetation due to different seed banks B. different temperatures C. different levels of moisture D. different altitudes E. different soil texture and pH levels
Which is NOT one of the six major classes of nutrients?
A. carbohydrates B. nucleic acids C. vitamins D. water
Standing out in center field, the baseball player watches the hitter's bat strike the ball and then, slightly later, hears the sound of the impact. What types of sensory receptors did the player just use?
A) thermoreceptors and chemoreceptors B) photoreceptors and mechanoreceptors C) chemoreceptors and pain receptors D) pain receptors and thermoreceptors