A gene is a basic unit of heredity and a sequence of nucleotides in DNA that encodes the synthesis of a gene product, either RNA or protein. For example, if both of your parents have green eyes, you might inherit the trait for green eyes from them.
Answer:
Alcohol affects both "excitatory" neurotransmitters and "inhibitory" neurotransmitters. An example of an excitatory neurotransmitter is glutamate, which would normally increase brain activity and energy levels. Alcohol suppresses the release of glutamate, resulting in a slowdown along your brain's highways.
Explanation:
The correct answer is the third one
Each half would be a Hemisphere. I hope this helps.