Transcription starts at a region of DNA called
a(n)
a. sequencer.
b. promoter.
c. activator.
d. terminator.
e. transcriber
B
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How many nuclear envelopes form during mitosis and meiosis?
a. Two nuclear envelopes form during both mitosis and meiosis. b. Two nuclear envelopes form during mitosis and four during meiosis. c. Two nuclear envelopes form during mitosis and six during meiosis. d. Four nuclear envelopes form during both mitosis and meiosis.
Of the following areas on Earth's surface, which area moves fastest and has the greatest linear velocity?
A) North Pole (90° north) B) Tropic of Cancer (23.5° north) C) Tropic of Capricorn (23.5° south) D) Equator (0°)
Environmental resistance may limit the size of populations by
A) increasing both birth and death rates. B) increasing death rates and/or decreasing birth rates. C) decreasing death rates and/or increasing birth rates. D) changing the biotic potential. E) decreasing both birth and death rates.
The amount of time needed to sterilize materials using moist heat is (more/less) than the time needed to sterilize using dry heat
What will be an ideal response?