Which technique reduces the amount of a specific RNA or protein produced by an organism?
a. knockout
b. chain termination
c. knockdown
d. transgenesis
e. knock-in
Ans: c
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Which of the following statements is true in prokaryotic organisms?
A. Transcription and translation both occur in the cytoplasm. B. Prokaryotic organisms do not carry out transcription or translation, only eukaryotic cells do. C. Transcription occurs in the nucleus, and translation occurs in the cytoplasm. D. Transcription and translation both occur in the nucleus.
During their experiments with chlorella, Calvin and Benson found no free glucose. Why do you think this is?
A. Glucose takes too long to synthesize. B. Glucose is an isomer of fructose. C. Glucose is stored as starch. D. Glucose would cause H2O to leave the chlorella cells. E. Green algae do not respire when illuminated.
You observe a tissue with one free surface with several layers of cells attached to a basal lamina. This
is an example of
a. connective tissue. b. epithelial tissue. c. muscle tissue. d. nervous tissue. e. connective and muscle tissue.
In this representation of transcription, strand #
____ is ____ because it ____.
a. 2; RNA; is double-stranded b. 3; RNA; contains uracil c. 2; RNA; contains thymine d. 2; RNA; has no uracil e. 3; DNA; contains adenine