A bacterial ________ is the nontranscribed region of the DNA to which RNA polymerase binds in order to initiate transcription.
A. initiator
B. operator
C. operon
D. promoter
Answer: D
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Which of the following is an advantage of DNA typing?
A. It can be used to differentiate identical twins. B. Only small amounts of DNA are needed. C. It is cheaper than fingerprinting. D. It is error free compared to any other method. E. None of the answer options is correct.
The portion of a flower that receives the pollen is the
A. ovary. B. anther. C. stigma. D. style. E. sepal.
To visualize the structure of DNA, which has a width of 10 nm, which microscope would be best?
a. fluorescence microscope b. light microscope c. staining microscope d. polarized microscope e. electron microscope
The first step in the healing of a fracture is the formation of ________
Fill in the blank(s) with correct word