incomplete dominance

Japanese: incomplete dominance(英語表記)incompletedominance
incomplete dominance

...On the other hand, I A and I B are dominant over i , and conversely, i is recessive over I A and I B , so the phenotypes of the two heterozygotes I A i and I B i are type A and type B, respectively.
[Allelic relationships]
The functional relationship between the two alleles present in a heterozygote can be codominant, as seen between the I A and I B genes, dominant-recessive, as seen between the I A (or I B ) and i genes, or incomplete dominance, in which the phenotype of the heterozygote is intermediate between the homozygotes of both genes. When a red-flowering plant is crossed with a white-flowering plant, the heterozygote often produces pink flowers; this is an example of incomplete dominance.

*Some of the terminology explanations that mention "incomplete dominance" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…一方,IAIBiに対し優性dominantであり,逆にiIAIBに対し劣性recessiveであるので,二つのヘテロ接合体IAiIBiの表現型はそれぞれA型とB型になる。
[対立遺伝子の関係]
 ヘテロ接合体に存在する二つの対立遺伝子の作用上の関係には,上記のIA,IB両遺伝子の間にみられた共優性の関係や,IA(またはIB)とi遺伝子の間にみられた優劣性の関係のほか,ヘテロ接合体の表現型が両遺伝子のホモ接合体の中間になる不完全優性incomplete dominanceがある。赤い花をつける植物と白い花をつける植物を交配してつくったヘテロ接合体が桃色の花をつけることがよくあるが,これは不完全優性の1例である。…

※「incomplete dominance」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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