Choose the statement below that is not true regarding sickle-cell anaemia.
A) Individuals who are heterozygous for the sickle-cell allele cannot make haemoglobin.
B) The sickle-cell haemoglobin molecule contains an amino acid substitution.
C) The haemoglobin molecules of an individual with sickle-cell anaemia clump together.
D) The red blood cells of an individual with sickle-cell anaemia distort and elongate.
E) Sickle-cell anaemia may be lethal.

Question

Quizplus · Accepted Answer

Individuals who are heterozygous for the sickle-cell allele can still make haemoglobin, but it is a mixture of normal and sickle-cell haemoglobin. It is only individuals who are homozygous for the sickle-cell allele who produce mainly sickle-cell haemoglobin.

Choose the Statement Below That Is Not True Regarding Sickle-Cell