After an action potential is triggered, the rapid increase in membrane potential can be attributed to
A. the closing of potassium leak channels.
B. the opening of the voltage-gated potassium channels.
C. the closing of sodium leak channels.
D. the direction reversal of the sodium/potassium pump.
E. the opening of voltage-gated sodium channels.
E. the opening of voltage-gated sodium channels.
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During eukaryotic transcription, TFIID recognizes and binds the ________ box in the DNA
Fill in the blank with correct word.
Reactions that tend to proceed on their own, releasing energy, are called:
A. endergonic B. productive C. exergonic D. catalytic
When tryptophan levels in a cell are low, a cell will stall transcription but continue translation of the tryptophan operon.
Answer the following statement true (T) or false (F)
The number of proteins in humans
A) is approximately equal to the number of genes. B) is less than half the number of genes. C) is much greater than the number of genes.