A cell’s genetic information consists of _____ of its chromosomes
1.which nucleotide bases the DNA contains
2.the sugar group in the nucleotides
3.the orientation of the strands of DNA
4.the order of the nucleotide bases
4
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The outer bark of a woody stem is produced by
a. cork cambium. b. inner bark. c. parenchyma. d. vascular cambium.
Which of the following is incorrect concerning
Radiolarians? a. They have perforated shells of calcium carbonate. b. They form part of the plankton. c. They use pseudopods for feeding. d. They have vacuoles that impart buoyancy. e. They are heterotrophic protists
The streamlined shape of the dolphin, seal, and other swimming animals is most important for
A. overcoming the forces of gravity acting on the animal. B. reducing drag from the water they must swim through. C. maintaining a consistent speed in the dense medium. D. reducing the mass of the animal's body.
Which of the following characteristics of a medicine might be effective in treating a herpes simplex (a virus, not a bacteria) infection with as little harm to the patient as possible?
A) blocking cell wall synthesis B) stopping cilia activity C) preventing capsid formation D) halting membrane formation