Which base sequence in the dna molecule identifies the region where a transcription factor will bind, allowing rna polymerase to attach to the molecule?
a. aacctg
b. tgga
c. tatata
d. aggat

An atom of nitrogen had seven protons in its nucleus. how many electrons does it have

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What initially causes a nerve impulse? release of enzymes out of the neuron movement of chemicals into the dendrites of the neuron pathogens attacking the dendrites of the neuron red blood cells bathing the neuron