During transcription, which strand of DNA serves as the template?

Practice Questions

Q1
During transcription, which strand of DNA serves as the template?
  1. Coding strand
  2. Non-coding strand
  3. Both strands
  4. Neither strand

Questions & Step-by-Step Solutions

During transcription, which strand of DNA serves as the template?
  • Step 1: Understand that DNA has two strands: the coding strand and the non-coding strand.
  • Step 2: The coding strand is the one that has the same sequence as the RNA (except for thymine being replaced by uracil).
  • Step 3: The non-coding strand is the one that is used as a template during transcription.
  • Step 4: During transcription, RNA polymerase reads the non-coding strand to create a complementary RNA strand.
  • Step 5: Therefore, the non-coding strand of DNA serves as the template for RNA synthesis.
  • Transcription – The process by which RNA is synthesized from a DNA template.
  • Template Strand – The strand of DNA that is used as a guide for RNA synthesis, typically the non-coding strand.
  • Coding vs Non-Coding Strands – Understanding the difference between the coding strand (which has the same sequence as the RNA) and the non-coding strand (which serves as the template).
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