Which of the following is an example of a protein that can read the sequence of DNA without opening the double helix?
A) RNA polymerase
B) DNA polymerase
C) helicase
D) transcription factor
E) primase
D) transcription factor
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To which superfamily of transposons is RAG1 related?
A. Merlin B. Banshee C. Maverick D. Transib E. Tc1/mariner
An infectious circular piece of RNA that can infect plants is called a ________.
A. virus B. prion C. viroid D. capsid
The sodium-potassium pump catalyzes
Up to 25% of a cell's ATP is used to run sodium-potassium pumps. Without the resulting sodium and potassium gradients, neurons and muscles cannot fire properly. A. equilibrium. B. facilitated diffusion. C. osmosis. D. active transport. E. diffusion.
Which of the following is not an
environmental cue for plants? a. Length of night. b. Temperature. c. Earth’s magnetic field. d. Presence of pathogens. e. Gravity.