What is the role of zinc in gene expression?
a. zinc stimulates the production of metallothionein by binding to a regulatory factor
b. zinc deactivates the transcription of the gene for the metallothionein protein
c. zinc promotes the production of the transport proteins that are involved in protein synthesis.
d. zinc transcribes the gene that synthesizes the protein receptor.
Ans: a. zinc stimulates the production of metallothionein by binding to a regulatory factor
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