1. 1隱性的(基因)

    In biology, genes are tiny instructions you get from your mother and your father. Some instructions show even if you get them from only one parent; those are called dominant. A recessive gene is the quieter kind: it usually does not show in you unless both parents pass you that same gene. You can carry it and look perfectly fine, and then it appears in a child later. School books love tidy examples (a gene for a trait that ‘hides’), and doctors use the word in the same way. As a noun, a recessive is that kind of gene or trait. Though actually, real bodies are messier than the tidy two-gene story: many features come from lots of genes working together, and some things sit in between ‘shows’ and ‘hides’. In ordinary life this is specialist talk — you meet it in science class and medical news, not in the street.

組成From Latin recēdō (‘go back, withdraw’) + -ive, or directly from New Latin recessīvus — the gene that ‘steps back’ unless both parents pass it.

同家族的字

  • recedeboth from Latin recēdō, ‘go back’

原始詞典資料4 筆記錄

以下是外部詞典記錄的用法,摘錄並精簡格式,我們還沒有寫成教學內容。上面的說明才是我們自己寫的;有些用法可能上面已經講過了。

recessiveadj/ɹɪˈsɛsɪv/

  • 1

    Going back; receding.

  • 2

    biologygeneticsmedicineAble to be masked by a dominant allele or trait.

    • 1944 June 21, James A. G. Rehn, South African Bird-Locust Records and Notes (Orthoptera; Acrididae; Cyrtacanthacridinae; Group Cyrtacanthacres), Notulae Naturae, Number 137, Academy of Natural Sciences of Philadelphia, page 3, The Lydenburg male and the other two females have the infuscate pattern definitely more recessive and less evident, although traceable.
    • This plan takes advantage of the fact that barless is the most recessive of a series of alleles.
  • 3

    Not dominant; whose effect is masked by stronger effects.

    • The worker–client relationship is more recessive and has a more catalytic and enabling quality.
    • The law-making or legislative component was the most recessive component of the legal system of hunter-gatherers, although decisions or advice given by mediators were remembered and used again to settle similar violations of rules or disputes among parties.

recessivenoun/ɹɪˈsɛsɪv/

  • 1

    biologygeneticsmedicineA gene that is recessive.

    • Suppose, for example, that we started with a population consisting of pure dominants, heterozygotes, and recessives in the ratio 1 : 4 : 4.
    • Finally, if we suppose provisionally that the mutant genes are dominant just as often as they are recessive, selection will be far more severe in eliminating the disadvantageous dominants than in eliminating the disadvantageous recessives.

摘錄自 英文維基詞典 English Wiktionary,已精簡格式;依 CC BY-SA 4.0 授權使用,改動後的內容同樣以此授權提供。