<span>A gene contains all the information needed to build a unique human being.
Genes contain DNA and traits and so on. Genes make up chromosomes.
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Answer: The esential aminoacids are: phenylalanine, valine, threonine, tryptophan, methionine, leucine, isoleucine, lysine, and histidine
Explanation:
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B.)They need to be able to use a cash register to complete customer transactions