V2EX heterozygote

Heterozygote

Definition / 释义

杂合子:在某一基因位点上携带两个不同等位基因的个体(例如 Aa)。常见于遗传学、育种学与医学遗传学语境中。(另有相关概念如 heterozygosity“杂合度”。)

Pronunciation / 发音

/htrozaot/

Examples / 例句

A heterozygote has two different alleles for a gene.
杂合子在某个基因上拥有两个不同的等位基因。

In Mendelian inheritance, a heterozygote may show the dominant phenotype while still carrying the recessive allele.
在孟德尔遗传中,杂合子可能表现出显性性状,但仍携带隐性等位基因。

Etymology / 词源

来自希腊语词根:**hetero-**(“不同的”)+ zyg- / zygote(与“结合、配对”有关,指受精卵/合子)。字面含义可理解为“由不同成分结合而成的(个体)”,在遗传学中引申为“等位基因不同的合子/个体”。

Related Words / 相关词

Literary Works / 文学作品举例

  • Introduction to Genetic Analysis(Griffiths 等):在讲解孟德尔遗传与基因型(如 Aa)时频繁使用 heterozygote
  • Genetics: Analysis and Principles(Hartl & Ruvolo):讨论群体遗传与杂合优势等主题时使用该词。
  • Principles of Genetics(Snustad & Simmons):在基础遗传学章节(等位基因、显隐性、基因型)中常见该术语。
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