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5. 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 protein coded by the DNA has a different amino acid sequence.
C. The hormones in the blood are changed by increased differences in genes.
D. The carbohydrate coded by the DNA has a different structure.

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Final answer:

Sickle cell anemia is caused by a mutation in the hemoglobin gene, altering the shape of red blood cells and impacting oxygen delivery in the body.


Explanation:

In sickle cell anemia, a single point mutation in the gene for hemoglobin causes a change in the amino acid sequence of the protein. This mutation leads to the formation of long fibers that distort red blood cells, causing them to assume a sickle shape, which can result in serious health issues such as blockages in blood vessels. The mutation affects the structure and function of hemoglobin, disrupting oxygen delivery in the body.


Learn more about Sickle cell anemia mutation here:

https://brainly.com/question/34191714


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