The ribosomal RNA studies that led to the division of prokaryotic organisms into the Bacteria and the Archaea were begun by
A. Watson.
B. Pasteur.
C. Woese.
D. Needham.
Answer: C
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Unlike all other amine derived hormones, thyroid hormones
A. bind to membrane receptors to elicit a response. B. activate second messengers via binding to a membrane receptor. C. are derived from cholesterol. D. are produced by the gonads. E. bind to intracellular receptors rather than to membrane-bound receptors to elicit a response.
Seasonally flooded, forested wetlands along river systems are referred to as bottomlands or ________ woodlands
Fill in the blank(s) with correct word
Given that an unknown atom's mass number (AMU) is 27, its combination of particles could be
A. 27 electrons, 16 neutrons, 16 protons. B. 27 neutrons, 27 protons, 27 electrons. C. 15 neutrons, 12 electrons, 15 protons. D. 16 electrons, 11 neutrons, 16 protons.
tRNA is necessary for transcription to occur
Indicate whether the statement is true or false