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What are the protective membranes that protect the brain and spinal cord
Genetic Variation
The diversity in gene frequencies within a population, resulting from mutations, genetic recombination, and other sources.
Geographic Variation
Genetic differences that may exist among different populations within the same species. See cline for an example of one type of geographic variation
Sickle Cell Anemia
A genetic blood disorder characterized by red blood cells that assume an abnormal, rigid, sickle shape, leading to various complications.
Homozygous Dominant
A genetic condition where an individual has two dominant alleles of a particular gene, resulting in the expression of the dominant trait.
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