Transcription starts when RNA polymerase binds to the

a. transcription unit.
b. coding strand.
c. promoter.
d. transcription bubble.
e. nontemplate strand.


Ans: c

Biology & Microbiology

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_____ consists of nucleotides

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Which age structure diagram would be most indicative of the African country of Kenya?

a. pyramid-shaped with a wide base b. bullet-shaped c. middle section wider than both the relatively narrow base and top d. tapering from a broad top to a narrow bottom e. base and top both wider than the constricted center

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Amniocentesis and chorionic villi sampling are performed in order to

a. Discover the gender of the baby b. analyze the chromosomes c. check for limb abnormalities d. none of the above

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Cholera symptoms include

A. hypotension, tachycardia, shock. B. acidosis, sunken eyes, thirst. C. loss of blood volume. D. copious watery diarrhea. E. All of the choices are correct.

Biology & Microbiology