If the enzyme RNA polymerase was completely inhibited within a cell, it could not
A) form complementary sequences of DNA.
B) form spindle fibers.
C) form proteins.
D) form a new nuclear membrane during cell division.
E) link pieces of DNA together.
C) form proteins.
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What is the first event in muscle fiber contraction?
A. Acetylcholine is released from the end of the motor neuron. B. Acetylcholine diffuses across a gap at a neuromuscular junction. C. Calcium ions diffuse from sarcoplasmic reticulum into the sarcoplasm and bind to troponin molecules. D. The muscle fiber membrane is stimulated and a muscle impulse travels deep into the fiber through transverse tubules.
Describe the route of an RBC traveling from the heart to the left elbow and back to the heart
What will be an ideal response
Based on function, the vast majority of neurons are
A. sensory neurons. B. motor neurons. C. unipolar neurons. D. bipolar neurons. E. interneurons.
Walking a tightrope would activate what portion(s) of the medulla?
A. the pyramids B. the superior colliculi C. the olives D. the pyramids and the superior colliculi E. the pyramids and the olives