What is the function of the RNA molecules?
a. add surface area for chemical reactions
b. store peroxide to detoxify the cytoplasm
c. participate in protein synthesis
d. maintain the nuclear membrane
c. participate in protein synthesis
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Which of the following is true of electric synapses? Select all correct choices
A. They enable rapid communication. B. They are found in the mammalian brain. C. They release neurotransmitter molecules through exocytosis.
What did Richard Axel and Linda Buck discover about the way in which we are able to perceive many different types of odors?
A. Many different types of odors bind to just a few different types of receptor molecules. B. Vertebrate animals make a large number of distinct types of receptor proteins, each of which binds a particular odorant molecule or small group of such molecules. C. Odors are distinguished by the way in which they bind both olfactory and taste receptors—it is the overall "picture" generated this way that we perceive. D. None of these choices are correct.
) Places of economic activity organized around one or more high-growth industries are known as
A) growth poles. B) north poles. C) economic poles. D) industrial poles. E) government poles.
Which of the following illustrates Mendel’s law of independent assortment?
a. a dihybrid cross b. a Punnett square c. the first division in meiosis d. a monohybrid cross