locus

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locus

genetics

Learn about this topic in these articles:

genetic variations

In evolution: The gene pool
…gene (which geneticists call a locus), such as the one determining the MN blood groups in humans. One form of the gene codes for the M blood group, while the other form codes for the N blood group; different forms of the same gene are called alleles. The MN gene…
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reflection in blood groups

In blood group: Blood groups and genetic linkage
…a chromosome is called a locus. Each locus may be the site of several alleles (alternative genes). In an ordinary cell of the human body, there are 46 chromosomes arranged in 23 pairs, 22 pairs of which are autosomes (chromosomes other than sex chromosomes), with the remaining pair being the…
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