Question

1.which biomolecules is most associated with the cause of sickle - cell anemia? 2.justify your answer to number 1 with evidence.

Explanation:

1. Sickle - cell anemia is caused by a mutation in the gene that codes for hemoglobin, a protein. Proteins are biomolecules.
2. The mutation in the gene for hemoglobin leads to the production of abnormal hemoglobin (hemoglobin - S). This abnormal hemoglobin causes red blood cells to sickle. Genetic studies have shown that a single - base substitution in the DNA sequence of the gene for the beta - chain of hemoglobin results in the production of the abnormal protein.

Answer:

1. Protein
2. A mutation in the gene for hemoglobin (a protein) causes sickle - cell anemia. A single - base substitution in the DNA sequence of the gene for the beta - chain of hemoglobin leads to the production of abnormal hemoglobin (hemoglobin - S), which causes red blood cells to sickle.