DNA sequencing makes use of dideoxynucleotides that ________
a. can be incorporated into a growing strand but cannot bind to the next nucleotide in the sequence
b. have normal sugar-phosphate backbones but altered base structures
c. carry pigment molecules in place of phosphate groups
d. behave chemically exactly as normal nucleotides do but are labeled with colored pigments
a
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Certain drugs use RNA interference as a mechanism of action. What molecule would the active compounds of these drugs be composed of?
A. Carbohydrate B. Steroid C. Protein D. Nucleic acid E. Small ion
Which of the following is not a basic characteristic of life?
a. Taking in energy and materials. b. Sensing and responding to changes in the environment. c. Locomotion. d. Reproducing and growing. e. Consisting of one or more cells.
The region of the vertical depth profile where the temperature declines most rapidly is called the ________
Fill in the blank(s) with correct word
The tree of life:
a. provides us with a map of the history of life. b. provides us with a map that reflects the process of descent with modification. c. connects evolutionary history to the current diversity of life on Earth. d. All of the above.