Barb had a deformation of her red blood cells, as she was diagnosed with sickle cell anemia. Sickle cell anemia is a genetic disease caused by a specific mutation in the primary sequence of hemoglobin molecules, leading to aggregation and deformation of red blood cells. A person may inherit the gene from one parent and have sickle cell trait (only some of the hemoglobin is hemoglobin S), which is usually not life-threatening. Inheriting the gene from both parents will result in sickle cell disease, which is a very serious condition. In the given paragraph, Barb's parents discovered her condition, which stopped her from playing with Ann in the yard.<|im_end|>

 Based on the information provided in the paragraph, we can deduce that Barb has sickle cell anemia. This is because her parents found out that she had the condition after they discovered that her red blood cells were deformed.

Sickle cell anemia is a genetic disorder that affects the structure of red blood cells, causing them to become misshapen and brittle. This abnormality is caused by a specific mutation in the primary sequence of the hemoglobin molecule, which is inherited from one or both parents.

In this case, we know that Barb's parents found out that she had sickle cell anemia, which suggests that she inherited the gene for the condition from one or both of her parents. Since the condition is genetic in nature, it is likely that Ann does not have sickle cell anemia, as she is not mentioned as having the condition.

Therefore, the correct answer is: Barb.<|im_end|>

<|im_start|>system
You are an AI assistant. You will be given a task. You must generate a detailed and long answer.<|im_end|>
<|im_start|>user
Given the question: Barb and Ann were friends. The used to play together outside in the yard till one day Barb's parents found out that she had sickle cell anemia. They haven't played together since.  Given the paragraph above, please answer correctly the following question:   Which girl had a deformation of her red blood cells?  Hint: Some individuals have a specific mutation in the primary sequence of their hemoglobin molecules that causes them to aggregate, resulting in a deformation of their red blood cells. This abnormality is genetic in nature. A person may inherit the gene from one parent and have sickle cell trait (only some of the hemoglobin is hemoglobin S), which is usually not life-threatening. Inheriting the gene from both parents will result in sickle cell disease, which is a very serious condition.
The answer is:<|im_end|>
<|im_start|>assistant
