...This is because the genes that control the production of M and N antigens occupy the same place (locus) on the same chromosome, so M and N are treated as one group. The term blood group system is used for such a group, and it is called the MN blood group system or MN blood type. Within one system, it is possible to distinguish two or more types (phenotypes), for example, M type is one that has M antigen but not N antigen, N type is the opposite, and MN type is one that has both antigens. ... *Some of the terminology that refers to the "MN blood group system" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…これはM抗原とN抗原の産生を支配する遺伝子が同じ染色体の同じ場所(座)を占めているからで,MとNとは一つのグループとして扱われる。このようなグループに対して血液型システムという語が使われ,MN血液型システムあるいはMN血液型というように呼ばれる。一つのシステムのなかで,たとえばM抗原をもちN抗原をもたないものをM型,その逆をN型,両抗原をもつものをMN型というふうに二つ以上の型(表現型)を区別することができる。… ※「MN 血液型システム」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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