What is the least number of base substitutions needed to alter the nucleotide sequence of the $\text{HbA}$ (normal) allele into the $\text{HbS}$ (sickle cell) allele?
- A1
- B2
- C3
- D4
Biology 9700 · AS & A Level · Proteins
What is the least number of base substitutions needed to alter the nucleotide sequence of the $\text{HbA}$ (normal) allele into the $\text{HbS}$ (sickle cell) allele?