Which of the following is true of splicing?
A) It involves both the snRNA and protein portions of a snRNP.
B) It involves only the protein portion of a snRNP.
C) It involves only the snRNA portion of a snRNP.
D) snRNPs are not involved in splicing.
A
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Whales that die and fall to the depths of ocean are consumed by giant isopods. These relatives of the common roly poly (or pill bug) grow about a foot in length and are about the size of a football. Which type of aquatic organism is this creature?
A. decomposer B. producer C. consumer D. plankton
How deep should a water well be drilled?
A. To the water table. B. Above the water table. C. Below the water table.
When Nellie tosses a ball at 60° upward, the horizontal component of the initial velocity
A. decreases with time. B. increases with time. C. remains constant. D. need more information
Which of the following describes how a contrail forms?
A. air warming as it passes over the aircraft's wings B. water vapour in the engine exhaust mixing with air C. heated air expulsed from the cabin D. heating of the air by the engine exhaust