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The CCR5 gene is not classified as strictly dominant or recessive; rather, it is involved in the immune response and can influence susceptibility to certain diseases, such as HIV. Individuals with two copies of the mutated CCR5 gene (homozygous) are resistant to HIV infection, while those with one or no copies (heterozygous or wild-type) may have varying levels of susceptibility. Thus, the effects of CCR5 can be more complex than traditional Mendelian inheritance.

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2mo ago

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