If one strand of dna has the sequence c-t-a-g-c-g-t-t-a, what sequence would appear opposite it on the other strand?

the other strand will have g-a-t-c-g-a-a-t that is the answer to your question

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

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