The non-transcribed strand has the same base sequence as the mRNA except that it has

  1. uracil instead of thymine
  2. thymine instead of uracil
  3. ribose
  4. no adenine
Answer

B) thymine instead of uracil

mRNA copies the coding strand with U. AS & A Level Biology · Topic 6 Nucleic Acids and Protein Synthesis · 6.2 Protein synthesis

Biology MCQ · More A Level Biology: Nucleic acids and protein synthesis MCQs · Practise