The nontranscribed region of DNA to which RNA polymerase binds to initiate transcription is called the
A. operon.
B. promoter.
C. operator.
D. intron.
E. exon.
Answer: B
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Use the following graph to answer the following question(s).
The amount of fat does not affect the frequency of the size of cells found in cookies.
Answer the following statement true (T) or false (F)
Certain plants may form tissues called ________ when their roots are flooded, whereas other plants may always form these tissue types.
A. parenchyma. B. collenchyma. C. sclerenchyma. D. aerenchyma. E. None of the choices is correct.
Freshwater is most likely to be polluted
A) by oil spills in ocean water moving inland. B) as a result of eutrophication. C) by contaminants from aquifers moving to surface waters. D) from organic solvents and farming chemicals in surface water runoff. E) by radioactive waste seeping from nuclear reactors.
What type of tissue is striated, contains cells with one nucleus, and is not under voluntary control?
A. smooth muscle B. nervous tissue C. skeletal muscle D. cardiac muscle