In sickle cell anaemia, a substitution changes

  1. all the amino acids in haemoglobin
  2. the haem group
  3. the number of chromosomes
  4. glutamic acid to valine in the β-globin chain
Answer

D) glutamic acid to valine in the β-globin chain

One codon change in HBB. 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