Poly(A) site choice:
A. is a mechanism to determine the length of the poly(A) tail.
B. leads to polyadenylation of the 5' end of the mRNA.
C. can generate multiple protein products from a single gene.
D. is catalyzed by small nucleolar ribonucleoproteins.
C
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Once food is digested, the nutrients must be absorbed by the epithelial cells that line the specialized portions of the alimentary canal. Small, hydrophobic molecules can diffuse down concentration gradients across the membrane. What types of molecules would require ACTIVE TRANSPORT in order to get across?
_____ minerals _____ water _____ monoglycerides _____ amino acids _____ salt
Do different types of teeth have different functions?
a. Yes b. No
Modern oceanography and marine biology were attributed to:
a. the voyage of the Beagle. b. the discoveries of Alvin. c. the laying of the transatlantic telegraph cable. d. expeditions of Alexander Agassiz. e. the Challenger expedition.
An alien from another planet landed on earth. He is fascinated by cars and is determined to figure out how they work. He decides to disassemble one of them and examine each part independently. He removes one of the tires and proceeds to learn all he can about the tire. He then removes one of the headlights and proceeds to learn all he can about the headlight. What type of approach is this alien taking to learn about the car?
A. reductionism B. Emergent properties C. inductive reasoning D. deductive reasoning