A fragment of the coding strand of a DNA double helix: 5′-ATG CGT TAC GGA-3′. Adjacent nucleotides are 0.34 nm apart. 1) Explain complementarity and antiparallelism and which strand is the template in transcription. 2) Write the second (template) strand and the mRNA made from this fragment, marking 5′ and 3′ ends. 3) Calculate the number of hydrogen bonds in the fragment. 4) Calculate the length of the fragment (nm). For each part, write out the law or method used (cross scheme, formulas, reasoning) and all calculations step by step.
The AI score is an estimate. In the official exam the written part is marked by BMBA examiners.