Most cancers are hereditary?
a. true
b. false
Answer: b. false
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When reporting a direct smear from a primary specimen, it is important to note all of the following except:
a. white blood cells. b. squamous epithelial cells. c. artifacts. d. prominent cell shapes and arrangements.
Which of the following processes involves meiosis?
a. healing wounds b. increase in size during growth c. production of sperm cells d. uncontrolled division of cancer cells
Chloroplasts arose via _____.
A. endosymbiosis of euglenids B. endosymbiosis of ?-Proteobacteria C. endosymbiosis of cyanobacteria D. endosymbiosis of dinoflagellates
Two 6-base sequences are present in bacterial promoters: TATAAT (located 10 nt upstream from the start site) and TTGACA (located 35 nt upstream from the start site). What is the significance of the fact that these two base sequences are different?
A. Both the location of the start site and the direction of transcription can be established. B. It allows RNA polymerase to distinguish between the template strand and the coding strand of the DNA molecule. C. Binding sites for both the core polymerase and holoenzyme are provided. D. Binding sites for both the holoenzyme and ATP are provided. E. The transcription bubble can be properly formed.