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To date, several lactose metabolism mutants have been found in Escherichia coli. One of these mutants has a phenotype in which the cell cannot accumulate lactose because no lactose permease protein is present. What genotype would be associated with this mutation?
Synaptic Cleft
The gap between two neurons where neurotransmitters are released to transmit signals.
Neurotransmitters
Chemical messengers in the nervous system that transmit signals across synapses from one neuron to another.
Acetylcholine
A neurotransmitter in the nervous system involved in muscle activation and memory formation.
Dopamine
A neurotransmitter involved in many functions, including motivation, reward, and the regulation of mood and movement.
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