DNA is wrapped around histones, which contain many copies of the positive amino acids lysine and arginine. These positive amino acids neutralize the negative charge of the ______________ of the DNA wrapped around the histone
A. ribose sugar
B. hydroxyl group
C. nitrogenous base
D. phosphate group
E. All of the answer options are correct.
D
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Which of the following processes occur in the cytoplasm of eukaryotic cells?
A. DNA replication and transcription B. DNA replication and translation C. transcription and translation D. DNA replication only E. DNA replication, transcription, and translation
The method of choice for sterilizing items such as antibiotic solutions, chemicals, radioisotopes, and vaccines that are heat-sensitive is:
a. dry, low temperature heat. b. moist, low temperature heat. c. filtration. d. chemical.
Four of the five tissues listed below are parts of the
vascular cylinder. Select the exception. a. endodermis b. procambium c. primary xylem d. primary phloem e. pericycle
Plants are raised under artificial lights turned off and on by an electric clock. Some are given long periods of light, others short periods. This is an example of:
A. deductive reasoning B. a hypothesis C. an experiment D. inductive reasoning E. a theory