Biology 9700 · AS & A Level · Proteins

Proteins — practice question

How many base substitutions, at minimum, are needed to convert the nucleotide sequence of the HbA (normal) allele into the HbS (sickle cell) allele?

  • A1
  • B2
  • C3
  • D4

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI