To begin transcription, RNA polymerase must bind to a segment of DNA called the ________.

A. initiation site
B. inducer
C. transcription bubble
D. promoter
E. primer


Answer: D

Biology & Microbiology

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Animals with chemical defenses are also typically:a

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Which of these pairs is correctly matched?

A) IgE: typically structured as a pentamer B) IgG: first immunoglobulin produced in a primary immune response C) IgM: readily crosses the placenta to protect the fetus/newborn D) IgA: found in secretions such as colostrum, tears, and mucus

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For the purposes of conservation, a species is considered __________ in the wild if the only known

members of the species are in captivity. Fill in the blank(s) with the appropriate word(s).

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Which statement is TRUE?

A) Coenzymes and prosthetic groups both bind tightly to their respective enzymes. B) Prosthetic groups bind tightly to their respective enzymes. C) Coenzymes bind tightly to their respective enzymes. D) Coenzymes and prosthetic groups are technically not bound to their respective enzymes. E) None of the above

Biology & Microbiology