Sickle cell anemia is a genetic condition that occurs because of a single
point mutation in the DNA gene for hemoglobin. How is this mutation
expressed in humans?
A. The chromosome carrying this gene changes shape during cell reproduction.
B. The carbohydrate coded by the DNA has a different structure.
C. The hormones in the blood are changed by increased differences in genes.
D. The protein coded by the DNA has a different amino acid sequence.
Answers: 2
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Sickle cell anemia is a genetic condition that occurs because of a single
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