Question

DNA is made up of a double helix with the ¨second¨ string only serving to reconstruct the ¨first¨ at cell-division.

How does this system ¨know¨ which string contains the genetic code to be translated and which string is mere complementary and must not be translated ?

Thank you in advance

Answer 1

Cells use the two-step process of transcription and translation to read each gene and produce the string of amino acids that makes up a protein.