In the original terminology, still used by some population geneticists, genes occur in pairs on homologous chromosomes. In this terminology the four blood groups A, B, O and AB (defined in terms of agglutination reactions) are determined by three (allelic) genes: A, B and O.
A variety of processes that include discovering that a gene is linked to another gene (which can serve as a marker for it), assigning genes to particular chromosomes, assigning genes to specific regions on chromosomes, and determining nucleotide sequences on chromosomes.
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Answer:
In the original terminology, still used by some population geneticists, genes occur in pairs on homologous chromosomes. In this terminology the four blood groups A, B, O and AB (defined in terms of agglutination reactions) are determined by three (allelic) genes: A, B and O.
Explanation:
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Explanation:
A variety of processes that include discovering that a gene is linked to another gene (which can serve as a marker for it), assigning genes to particular chromosomes, assigning genes to specific regions on chromosomes, and determining nucleotide sequences on chromosomes.
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