During processing in the nucleus, a(n) ____________________ is added to the 3' end of mRNA molecules
Fill in the blank(s) with correct word
poly-A tail
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Based on the idea that fungi have pores between their cell walls, which allow cytoplasm to move from one end of the mycelium to the other, which of the following hypotheses is the most plausible?
A) If a single mycorrhizal fungus formed symbiotic associations with more than one tree, carbon could travel from one plant to another. B) Parasitic fungi steal nutrients from their hosts. C) Predatory fungi capture their prey by encircling them with hyphae, and the flowing of the cytoplasm through the pores helps the hyphae to move around the prey. D) Fungi function as part of the global carbon cycle not only by converting carbon from one form to another, but by physically moving it from one location to another.
The mesh of branching filaments of fungi is collectively called the ________
a. hyphae b. ascocarp c. mycelium d. septae
Which of the following is used to describe the openings to the hearts in animals with open circulatory systems?
a. atria b. ostia c. septa d. ventricles
A metabolic reaction will most likely reverse
itself under which of the following circumstances?
a. when the pH is too high. b. when the temperature is too low. c. when the reactant concentration is too high. d. when the product concentration is too high. e. when the enzyme concentration is too high