noncoding strand

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or template strand

a term that is variously, and confusingly, applied to either of the two strands of genomic duplex DNA. It is now the term recommended for denoting the strand that is complementary in its sequence of bases to messenger RNA (mRNA) transcribed from the DNA; it thus functions as the template for synthesis of mRNA, which then contains the sequence present in the coding strand of duplex DNA (except for uracil in RNA serving in place of thymine in DNA). In some bacteria and viruses, alternate segments of both strands of duplex DNA may be noncoding. Other names: antisense DNA; antisense strand; complementary strand; minus strand; transcribing strand. Compare complementary DNA.

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