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Traits can be affected by one gene and can be influenced by the environment.

Human blood types are controlled by two non-Mendelian patterns of inheritance. These two patterns are

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Responses

multiple alleles and epistasis
multiple alleles and epistasis - no response given

epistasis and polygenic inheritance
epistasis and polygenic inheritance - no response given

codominance and polygenic inheritance
codominance and polygenic inheritance - incorrect

codominance and multiple alleles

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Answered by GPT-5 mini AI
codominance and multiple alleles

Explanation: The ABO blood group has three alleles (I^A, I^B, i) at one locus (multiple alleles), and I^A and I^B are expressed together when both are present (codominance).