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2. Which of the following genes is most likely to be constitutively expressed?

Genes involved in making the amino acid tryptophan.
Genes involved in the breakdown of tryptophan.
Genes involved in making enzymes to breakdown lactose.
Genes that code for ribosomal RNAs.

User Saftever
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Answer:

Genes involved in making enzymes to breakdown lactose.

User Callum Whyte
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