Biology 9700 · AS & A Level · Proteins

Proteins — practice question

In some individuals, a mutation may change the beta chains in their haemoglobin molecules. Consequently, polar amino acids on the outer surfaces of the chains are replaced by non-polar amino acids. What effect will this have on haemoglobin?

  • AHaemoglobin will become less soluble.
  • BHaemoglobin will become more soluble.
  • CHydrophobic interactions between amino acids will decrease.
  • DMore hydrogen bonds will form in the molecule.

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