Answer:
D
Explanation:
In multicellular organisms, the body is a system of multiple, interacting subsystems. Subsystems are groups of cells that work together to form tissues. Interactions are limited to the circulatory, excretory, digestive, respiratory, muscular, and nervous systems.
An amino acid can be formed by combining 3 nucleobases. In the test, the only nucleobase the mRNA is uracil. That means the possible combination of the nucleobase should be only UUU. Since there is only 1 possible combination, there should be 1 possible amino acid that can be formed.
<span>Phenylalanine should have UUU codon.</span>
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Potassium in the cell and sodium extracellularly
