Which of the following need to be included in a PCR reaction?
A) DNA, nucleotides, DNA polymerase, primers B) eggs, sperm, DNA donor cells
C) chromosomes, DNA polymerase, amino acids D) primers, DNA, restriction enzymes, plasmids
Answer: A
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What is the main difference between habituation and conditioning?
A. Habituation involves learning, while conditioning does not. B. Habituation involves genetic imprinting, while conditioning involves only learned behavior. C. Habituation involves a stimulus with no association, while conditioning involves a stimulus with an association. D. Habituation involves an increase in the intensity of response, while conditioning involves a decrease in intensity of response. E. Habituation lacks an external stimulus, while conditioning involves both external and internal stimuli.
Which of the following is the best hypothesis for the honeybee study?
a. Honeybees navigate using the sun. b. Patients undergoing anesthesia during surgery are often disoriented when they awaken. c. Isoflurane interferes with the functioning of an organism’s biological clock. d. Both mammals and honeybees have biological clocks that are similar in function.
Which best describes a catabolic reaction?
a. It involves the expenditure of energy. b. It involves the anabolic production of complex molecules. c. It involves the breakdown of life sustaining processes within cells. d. It involves the breakdown of large organic molecules to simple building blocks. e. It involves the building up of complex organic molecules from simple building blocks.
After attaching to a bacterial cell, a bacteriophage typically
A. extracts DNA from the cell. B. extracts protein from the cell. C. transforms the cell into a virulent strain. D. injects protein into the cell. E. injects DNA into the cell.