Replication of DNA is
A. semiconservative.
B. semidispersive.
C. conservative.
D. dispersive.
E. redundant.
Answer: A
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This atom in its unbound state has four valence electrons. These electrons readily form single, double, and even triple bonds among themselves to become stable. This atom is:
A. carbon. B. hydrogen. C. oxygen. D. nitrogen. E. phosphorus.
As fluid moves through a vessel, which factors determine the flow resistance? Select all correct choices
A. the viscosity of the fluid B. the length of the vessel C. the radius of the vessel D. the pressure exerted by the heart
In humans, ____ is involved in both cellular and physiological respiration
a. the circulatory system b. the respiratory surface c. mitochondria d. the respiratory medium e. blood
Which of the following is true of the chromosomes in a cell undergoing mitosis?
A. They have histones bound to them. B. They are found within the cytoplasm. C. They are loosely coiled. D. They are available for RNA synthesis. E. They are present in the haploid number.